Bump lz4 from 2.1.10 to 3.1.3

[dependabot-preview[bot]]

Bumps lz4 from 2.1.10 to 3.1.3.

Release notes

Sourced from lz4's releases.

Publish wheels for Python 3.9

This release adds support for publishing wheels to PyPi for Python 3.9. Wheel building is currently broken for Python 3.9 on Arm/Aarch64.

This release also drops building of wheels for Python 3.5.

This required some significant changes to the Travis and Appveyor configurations including:

• Moving to Visual Studio 2019 (14.2) on AppVeyor
• Building against the XCode 12.2 image on Travis

Arm builds and test speedups

• Travis now publishes wheels for Arm thanks to @ossdev07
• The stream tests now execute in much less time thanks to @tpwrules

Fixups for pkgconfig and CHAR_BIT

This release contains various fixups thanks to @godlygeek:

• Correct how pkgconfig is handled in setup.py to account for multiple build flags (#203 #204)
• Improve how CHAR_BIT is handled (#202 #201)

Out-of-band stream block size record support in the stream bindings

This release adds block size record support to the stream bindings thanks to @tSed.

In addition this release contains fixups to the tests to reduce execution time (@tsed), and a few small fixes.

Remove dead code

This release removes py3c from the codebase and strips out unused Python 2 support code. No functional changes are included with this release.

Fix OSX wheel publishing

This release fixes an issue that prevented the OSX wheels from being published to PyPi, and contains no functional changes.

Drop Python 2 support, add streams bindings, improve frame performance

This release:

• Drops support for Python 2 (although some dead code remains for future removal)
• Adds streams support thanks to the hard work of @tSed
• Fixes a performance bug with the frame bindings - thanks to @bjonen for the careful report and reproducer
• Adds Python 3.8 support

Update the bundled LZ4 library to version 1.9.1

This release updates the bundled LZ4 library to version 1.9.1.

The 2.2.x releases will be the final release that support Python 2.7. In the near future we'll begin work on the 3.0.x release which will only support Python >= 3.5, and will require LZ4 > 1.9.0.

Commits

• 18a4dc5 Merge pull request #214 from python-lz4/add-python39-wheel
• 5af24af Add Python 3.9 builds on Travis
• 01ec59e Add Python 3.9 builds on Appveyor
• e59a4a5 Merge pull request #213 from python-lz4/lz4-1.9.3
• 3d971ed Update bundled lz4 libs to 1.9.3 release
• b61d280 Merge pull request #188 from ossdev07/arm_support
• c56d4d2 Merge pull request #211 from tpwrules/stream-test-speed
• aedfd16 Added arm64 jobs in Travis-CI
• 5087091 Remove unnecessary resource checks
• f10213e Remove calls to garbage collector during stream tests
• Additional commits viewable in compare view

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