build(deps): Bump zstandard from 0.13.0 to 0.14.0 in /bot

[dependabot-preview]

Bumps zstandard from 0.13.0 to 0.14.0.

Release notes

Sourced from zstandard's releases.

0.14.0

Backwards Compatibility Notes

• This will likely be the final version supporting Python 2.7. Future releases will likely only work on Python 3.5+. See #109 for more context.
• There is a significant possibility that future versions will use Rust - instead of C - for compiled code. See #110 for more context.

Bug Fixes

• Some internal fields of C structs are now explicitly initialized. (Possible fix for #105.)
• The make_cffi.py script used to build the CFFI bindings now calls distutils.sysconfig.customize_compiler() so compiler customizations (such as honoring the CC environment variable) are performed. Patch by @Arfrever. (#103)
• The make_cffi.py script now sets LC_ALL=C when invoking the preprocessor in an attempt to normalize output to ASCII. (#95)

Changes

• Bundled zstandard library upgraded from 1.4.4 to 1.4.5. See release notes at https://github.com/facebook/zstd/releases/tag/v1.4.5.
• setup.py is now executable.
• Python code reformatted with black using 80 character line lengths.

Changelog

Sourced from zstandard's changelog.

0.14.0 (released 2020-06-13)

Backwards Compatibility Notes

• This will likely be the final version supporting Python 2.7. Future releases will likely only work on Python 3.5+. See #109 for more context.
• There is a significant possibility that future versions will use Rust - instead of C - for compiled code. See #110 for more context.

Bug Fixes

• Some internal fields of C structs are now explicitly initialized. (Possible fix for #105.)
• The make_cffi.py script used to build the CFFI bindings now calls distutils.sysconfig.customize_compiler() so compiler customizations (such as honoring the CC environment variable) are performed. Patch by @Arfrever. (#103)
• The make_cffi.py script now sets LC_ALL=C when invoking the preprocessor in an attempt to normalize output to ASCII. (#95)

Changes

• Bundled zstandard library upgraded from 1.4.4 to 1.4.5.
• setup.py is now executable.
• Python code reformatted with black using 80 character line lengths.

Commits

• 228cf82 global: release version 0.14.0
• d30822a readme: add legacy support section
• 323e7dd news: add release blurb about Python 2.7 and Rust intents
• fbd77d2 cffi: set LC_ALL=C when invoking preprocessor
• fde84bf cffi: call distutils.sysconfig.customize_compiler()
• 6f83534 c-ext: explicitly initialize entered and closed fields to 0
• 1f4cd17 tests: blacken common.py
• c3457da zstd: reflect upgrade to 1.4.5
• bce9a05 zstd: upgrade to zstd 1.4.5
• 6645432 tests: ignore pycache directory when finding input files
• Additional commits viewable in compare view

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