Bump pygithub from 1.58.2 to 1.59.1

Bumps [pygithub](https://github.com/pygithub/pygithub) from 1.58.2 to 1.59.1.
- [Release notes](https://github.com/pygithub/pygithub/releases)
- [Changelog](https://github.com/PyGithub/PyGithub/blob/v1.59.1/doc/changes.rst)
- [Commits](PyGithub/PyGithub@v1.58.2...v1.59.1)

---
updated-dependencies:
- dependency-name: pygithub
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements/prod.txt

@@ -214,9 +214,9 @@ pygit2==1.12.2 \
     --hash=sha256:f4df3e5745fdf3111a6ccc905eae99f22f1a180728f714795138ca540cc2a50a \
     --hash=sha256:f8f813d35d836c5b0d1962c387754786bcc7f1c3c8e11207b9eeb30238ac4cc7 \
     --hash=sha256:fe35a72af61961dbb7fb4abcdaa36d5f1c85b2cd3daae94137eeb9c07215cdd3 # pyup: <1.0.0
-PyGithub==1.58.2 \
-    --hash=sha256:1e6b1b7afe31f75151fb81f7ab6b984a7188a852bdb123dbb9ae90023c3ce60f \
-    --hash=sha256:f435884af617c6debaa76cbc355372d1027445a56fbc39972a3b9ed4968badc8
+PyGithub==1.59.1 \
+    --hash=sha256:3d87a822e6c868142f0c2c4bf16cce4696b5a7a4d142a7bd160e1bdf75bc54a9 \
+    --hash=sha256:c44e3a121c15bf9d3a5cc98d94c9a047a5132a9b01d22264627f58ade9ddc217
 Pygments==2.15.1 \
     --hash=sha256:8ace4d3c1dd481894b2005f560ead0f9f19ee64fe983366be1a21e171d12775c \
     --hash=sha256:db2db3deb4b4179f399a09054b023b6a586b76499d36965813c71aa8ed7b5fd1