chore(deps): update dependency com.google.cloud:google-cloud-document-ai to v2.1.0 (#613)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-document-ai](https://togithub.com/googleapis/java-document-ai) | `2.0.3` -> `2.1.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-document-ai/2.1.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-document-ai/2.1.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-document-ai/2.1.0/compatibility-slim/2.0.3)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-document-ai/2.1.0/confidence-slim/2.0.3)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/java-document-ai</summary>

### [`v2.1.0`](https://togithub.com/googleapis/java-document-ai/blob/master/CHANGELOG.md#&#8203;210-httpswwwgithubcomgoogleapisjava-document-aicomparev203v210-2021-09-01)

[Compare Source](https://togithub.com/googleapis/java-document-ai/compare/v2.0.3...v2.1.0)

##### Features

-   Remove use of deprecated gradle command in java README ([#&#8203;1196](https://www.togithub.com/googleapis/java-document-ai/issues/1196)) ([#&#8203;607](https://www.togithub.com/googleapis/java-document-ai/issues/607)) ([95cb397](https://www.github.com/googleapis/java-document-ai/commit/95cb397a9fd80014304cedb89bff56e4abe2fc80))

##### Dependencies

-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2.2.0 ([#&#8203;610](https://www.togithub.com/googleapis/java-document-ai/issues/610)) ([7c8037d](https://www.github.com/googleapis/java-document-ai/commit/7c8037d54d18fed262f2a19d5b5b2796a8f9862d))
-   update dependency com.google.cloud:google-cloud-storage to v2.1.0 ([#&#8203;603](https://www.togithub.com/googleapis/java-document-ai/issues/603)) ([dafaf0e](https://www.github.com/googleapis/java-document-ai/commit/dafaf0eb76783e3b3be24d461f697fc6441a0f88))

##### [2.0.3](https://www.github.com/googleapis/java-document-ai/compare/v2.0.2...v2.0.3) (2021-08-24)

##### Dependencies

-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2.1.0 ([#&#8203;597](https://www.togithub.com/googleapis/java-document-ai/issues/597)) ([e23cfe7](https://www.github.com/googleapis/java-document-ai/commit/e23cfe7317ed6a31d56d8719ab20c1c6922da315))

##### [2.0.2](https://www.github.com/googleapis/java-document-ai/compare/v2.0.1...v2.0.2) (2021-08-19)

##### Dependencies

-   update dependency com.google.cloud:google-cloud-storage to v2.0.2 ([#&#8203;594](https://www.togithub.com/googleapis/java-document-ai/issues/594)) ([dc51e3b](https://www.github.com/googleapis/java-document-ai/commit/dc51e3bc16736c9bf2fbeb1595a2627c4d982fe2))

##### [2.0.1](https://www.github.com/googleapis/java-document-ai/compare/v2.0.0...v2.0.1) (2021-08-12)

##### Bug Fixes

-   Update DocumentUnderstandingService default_host in v1beta2 from a regional endpoint, to non-regional ([#&#8203;584](https://www.togithub.com/googleapis/java-document-ai/issues/584)) ([aeb841e](https://www.github.com/googleapis/java-document-ai/commit/aeb841e24c5934a3d4eafad54d2041ab4f8b1d5a))

##### Dependencies

-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2.0.1 ([#&#8203;583](https://www.togithub.com/googleapis/java-document-ai/issues/583)) ([116d929](https://www.github.com/googleapis/java-document-ai/commit/116d929277e1727ef6df9d373dfc4a1eb4661617))
-   update dependency com.google.cloud:google-cloud-storage to v2.0.1 ([#&#8203;585](https://www.togithub.com/googleapis/java-document-ai/issues/585)) ([fbb2f87](https://www.github.com/googleapis/java-document-ai/commit/fbb2f87252ac22e642ceb365b1eb5b2d03160fbe))

</details>

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document-ai/snippets/pom.xml

@@ -41,7 +41,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-document-ai</artifactId>
-      <version>2.0.3</version>
+      <version>2.1.0</version>
     </dependency>
     <!-- [END documentai_install_with_bom] -->
     <dependency>