Bump pip from 21.1.3 to 21.2.1 in /.github/workflows

[cjolowicz]

Bumps pip from 21.1.3 to 21.2.1.

Changelog

Sourced from pip's changelog.

21.2.1 (2021-07-25)

Process

• The source distribution re-installation feature removal has been delayed to 21.3.

21.2 (2021-07-24)

Process

• pip freeze, pip list, and pip show no longer normalize underscore (_) in distribution names to dash (-). This is a side effect of the migration to importlib.metadata, since the underscore-dash normalization behavior is non-standard and specific to setuptools. This should not affect other parts of pip (for example, when feeding the pip freeze result back into pip install) since pip internally performs standard PEP 503 normalization independently to setuptools.

Deprecations and Removals

• Git version parsing is now done with regular expression to prepare for the pending upstream removal of non-PEP-440 version parsing logic. ([#10117](https://github.com/pypa/pip/issues/10117) <https://github.com/pypa/pip/issues/10117>_)
• Re-enable the "Value for ... does not match" location warnings to field a new round of feedback for the distutils-sysconfig transition. ([#10151](https://github.com/pypa/pip/issues/10151) <https://github.com/pypa/pip/issues/10151>_)
• Remove deprecated --find-links option in pip freeze ([#9069](https://github.com/pypa/pip/issues/9069) <https://github.com/pypa/pip/issues/9069>_)

Features

• New resolver: Loosen URL comparison logic when checking for direct URL reference equivalency. The logic includes the following notable characteristics:

  • The authentication part of the URL is explicitly ignored.
  • Most of the fragment part, including egg=, is explicitly ignored. Only subdirectory= and hash values (e.g. sha256=) are kept.
  • The query part of the URL is parsed to allow ordering differences. ([#10002](https://github.com/pypa/pip/issues/10002) <https://github.com/pypa/pip/issues/10002>_)

• Support TOML v1.0.0 syntax in pyproject.toml. ([#10034](https://github.com/pypa/pip/issues/10034) <https://github.com/pypa/pip/issues/10034>_)

• Added a warning message for errors caused due to Long Paths being disabled on Windows. ([#10045](https://github.com/pypa/pip/issues/10045) <https://github.com/pypa/pip/issues/10045>_)

• Change the encoding of log file from default text encoding to UTF-8. ([#10071](https://github.com/pypa/pip/issues/10071) <https://github.com/pypa/pip/issues/10071>_)

• Log the resolved commit SHA when installing a package from a Git repository. ([#10149](https://github.com/pypa/pip/issues/10149) <https://github.com/pypa/pip/issues/10149>_)

... (truncated)

Commits

• bd41229 Bump for release
• 765a4b4 Bump for development
• 3d25c53 Bump for release
• 27b9a9c Update AUTHORS.txt
• b9dbab2 Merge pull request #10199 from uranusjr/remove-local-sdist-reinstall
• 33b7f0c Remove deprecated sdist reinstall feature for 21.2
• a8b8d4d Document how to install provides_extras from local wheel file (#9698)
• 239a307 Error handling upon uninstall invalid parameter (#10171)
• 5e86264 Merge pull request #10189 from harupy/type-annotations-index-models
• 02b1855 Merge pull request #10188 from harupy/type-annotations-req
• Additional commits viewable in compare view

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