Bump pygit2 from 1.11.1 to 1.13.2

Bumps pygit2 from 1.11.1 to 1.13.2.

Changelog

Sourced from pygit2's changelog.

1.13.2 (2023-10-30)

• Support Python 3.12

• Documentation updates [#1242](https://github.com/libgit2/pygit2/issues/1242) <https://github.com/libgit2/pygit2/pull/1242>_

1.13.1 (2023-09-24)

• Fix crash in reference rename [#1233](https://github.com/libgit2/pygit2/issues/1233) <https://github.com/libgit2/pygit2/issues/1233>_

1.13.0 (2023-09-07)

• Upgrade to libgit2 v1.7.1

• Don't distribute wheels for pypy, only universal wheels for macOS

• New Repository.remotes.create_anonymous(url) [#1229](https://github.com/libgit2/pygit2/issues/1229) <https://github.com/libgit2/pygit2/pull/1229>_

• docs: update links to pypi, pygit2.org [#1228](https://github.com/libgit2/pygit2/issues/1228) <https://github.com/libgit2/pygit2/pull/1228>_

• Prep work for Python 3.12 (not yet supported) [#1223](https://github.com/libgit2/pygit2/issues/1223) <https://github.com/libgit2/pygit2/pull/1223>_

1.12.2 (2023-06-25)

• Update wheels to bundle libssh2 1.11.0 and OpenSSL 3.0.9

• Remove obsolete Remote.save() [#1219](https://github.com/libgit2/pygit2/issues/1219) <https://github.com/libgit2/pygit2/issues/1219>_

1.12.1 (2023-05-07)

• Fix segfault in signature when encoding is incorrect [#1210](https://github.com/libgit2/pygit2/issues/1210) <https://github.com/libgit2/pygit2/pull/1210>_

• Typing improvements [#1212](https://github.com/libgit2/pygit2/issues/1212) <https://github.com/libgit2/pygit2/pull/1212>_

... (truncated)

Commits

• f1bbd24 Release 1.13.2
• a9fe658 CI tests update Python 3.12 version
• 9f27733 Windows wheels for Python 3.12
• 02fea57 Update docstring of reference set_target
• c2331d9 Remove outdated log_append example
• 7999f77 CI fix tests
• aab211a Add support for Python 3.12 (except Windows)
• 8b92361 Release 1.13.1
• bd9f2a5 Fix crash in reference rename
• 8f912e1 Release 1.13.0
• Additional commits viewable in compare view