chore(deps): update dependency pillow to v8.4.0 (GoogleCloudPlatform#6930)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [Pillow](https://python-pillow.org) ([source](https://togithub.com/python-pillow/Pillow), [changelog](https://togithub.com/python-pillow/Pillow/blob/master/CHANGES.rst)) | `==8.3.2` -> `==8.4.0` | [![age](https://badges.renovateapi.com/packages/pypi/Pillow/8.4.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/pypi/Pillow/8.4.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/pypi/Pillow/8.4.0/compatibility-slim/8.3.2)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/pypi/Pillow/8.4.0/confidence-slim/8.3.2)](https://docs.renovatebot.com/merge-confidence/) |
| [pillow](https://python-pillow.org) ([source](https://togithub.com/python-pillow/Pillow), [changelog](https://togithub.com/python-pillow/Pillow/blob/master/CHANGES.rst)) | `==8.3.2` -> `==8.4.0` | [![age](https://badges.renovateapi.com/packages/pypi/pillow/8.4.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/pypi/pillow/8.4.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/pypi/pillow/8.4.0/compatibility-slim/8.3.2)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/pypi/pillow/8.4.0/confidence-slim/8.3.2)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>python-pillow/Pillow</summary>

### [`v8.4.0`](https://togithub.com/python-pillow/Pillow/blob/master/CHANGES.rst#&#8203;840-2021-10-15)

[Compare Source](https://togithub.com/python-pillow/Pillow/compare/8.3.2...8.4.0)

-   Prefer global transparency in GIF when replacing with background color [#&GoogleCloudPlatform#8203;5756](https://togithub.com/python-pillow/Pillow/issues/5756)
    \[radarhere]

-   Added "exif" keyword argument to TIFF saving [#&GoogleCloudPlatform#8203;5575](https://togithub.com/python-pillow/Pillow/issues/5575)
    \[radarhere]

-   Copy Python palette to new image in quantize() [#&GoogleCloudPlatform#8203;5696](https://togithub.com/python-pillow/Pillow/issues/5696)
    \[radarhere]

-   Read ICO AND mask from end [#&GoogleCloudPlatform#8203;5667](https://togithub.com/python-pillow/Pillow/issues/5667)
    \[radarhere]

-   Actually check the framesize in FliDecode.c [#&GoogleCloudPlatform#8203;5659](https://togithub.com/python-pillow/Pillow/issues/5659)
    \[wiredfool]

-   Determine JPEG2000 mode purely from ihdr header box [#&GoogleCloudPlatform#8203;5654](https://togithub.com/python-pillow/Pillow/issues/5654)
    \[radarhere]

-   Fixed using info dictionary when writing multiple APNG frames [#&GoogleCloudPlatform#8203;5611](https://togithub.com/python-pillow/Pillow/issues/5611)
    \[radarhere]

-   Allow saving 1 and L mode TIFF with PhotometricInterpretation 0 [#&GoogleCloudPlatform#8203;5655](https://togithub.com/python-pillow/Pillow/issues/5655)
    \[radarhere]

-   For GIF save_all with palette, do not include palette with each frame [#&GoogleCloudPlatform#8203;5603](https://togithub.com/python-pillow/Pillow/issues/5603)
    \[radarhere]

-   Keep transparency when converting from P to LA or PA [#&GoogleCloudPlatform#8203;5606](https://togithub.com/python-pillow/Pillow/issues/5606)
    \[radarhere]

-   Copy palette to new image in transform() [#&GoogleCloudPlatform#8203;5647](https://togithub.com/python-pillow/Pillow/issues/5647)
    \[radarhere]

-   Added "transparency" argument to EpsImagePlugin load() [#&GoogleCloudPlatform#8203;5620](https://togithub.com/python-pillow/Pillow/issues/5620)
    \[radarhere]

-   Corrected pathlib.Path detection when saving [#&GoogleCloudPlatform#8203;5633](https://togithub.com/python-pillow/Pillow/issues/5633)
    \[radarhere]

-   Added WalImageFile class [#&GoogleCloudPlatform#8203;5618](https://togithub.com/python-pillow/Pillow/issues/5618)
    \[radarhere]

-   Consider I;16 pixel size when drawing text [#&GoogleCloudPlatform#8203;5598](https://togithub.com/python-pillow/Pillow/issues/5598)
    \[radarhere]

-   If default conversion from P is RGB with transparency, convert to RGBA [#&GoogleCloudPlatform#8203;5594](https://togithub.com/python-pillow/Pillow/issues/5594)
    \[radarhere]

-   Speed up rotating square images by 90 or 270 degrees [#&GoogleCloudPlatform#8203;5646](https://togithub.com/python-pillow/Pillow/issues/5646)
    \[radarhere]

-   Add support for reading DPI information from JPEG2000 images
    \[rogermb, radarhere]

-   Catch TypeError from corrupted DPI value in EXIF [#&GoogleCloudPlatform#8203;5639](https://togithub.com/python-pillow/Pillow/issues/5639)
    \[homm, radarhere]

-   Do not close file pointer when saving SGI images [#&GoogleCloudPlatform#8203;5645](https://togithub.com/python-pillow/Pillow/issues/5645)
    \[farizrahman4u, radarhere]

-   Deprecate ImagePalette size parameter [#&GoogleCloudPlatform#8203;5641](https://togithub.com/python-pillow/Pillow/issues/5641)
    \[radarhere, hugovk]

-   Prefer command line tools SDK on macOS [#&GoogleCloudPlatform#8203;5624](https://togithub.com/python-pillow/Pillow/issues/5624)
    \[radarhere]

-   Added tags when saving YCbCr TIFF [#&GoogleCloudPlatform#8203;5597](https://togithub.com/python-pillow/Pillow/issues/5597)
    \[radarhere]

-   PSD layer count may be negative [#&GoogleCloudPlatform#8203;5613](https://togithub.com/python-pillow/Pillow/issues/5613)
    \[radarhere]

-   Fixed ImageOps expand with tuple border on P image [#&GoogleCloudPlatform#8203;5615](https://togithub.com/python-pillow/Pillow/issues/5615)
    \[radarhere]

-   Fixed error saving APNG with duplicate frames and different duration times [#&GoogleCloudPlatform#8203;5609](https://togithub.com/python-pillow/Pillow/issues/5609)
    \[thak1411, radarhere]

</details>

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appengine/flexible/scipy/requirements.txt

@@ -3,6 +3,6 @@ gunicorn==20.1.0
 imageio==2.9.0
 numpy==1.20.0; python_version >= '3.7'
 numpy==1.19.5; python_version < '3.7'
-pillow==8.3.2
+pillow==8.4.0
 scipy==1.6.1; python_version >= '3.7'
 scipy==1.5.4; python_version < '3.7'

dataflow/gpu-examples/tensorflow-landsat/requirements.txt

@@ -1,4 +1,4 @@
-Pillow==8.3.2
+Pillow==8.4.0
 apache-beam[gcp]==2.31.0
 rasterio==1.2.9
 tensorflow==2.6.0

people-and-planet-ai/image-classification/requirements.txt

@@ -1,4 +1,4 @@
-Pillow==8.3.2
+Pillow==8.4.0
 apache-beam[gcp]==2.31.0
 google-cloud-aiplatform==1.1.1
 google-cloud-bigquery==2.28.1 # Indirect dependency, but there is a version conflict that causes pip to hang unless we constraint this.