Bump gitpython from 3.1.26 to 3.1.27

Bumps [gitpython](https://github.com/gitpython-developers/GitPython) from 3.1.26 to 3.1.27.
- [Release notes](https://github.com/gitpython-developers/GitPython/releases)
- [Changelog](https://github.com/gitpython-developers/GitPython/blob/main/CHANGES)
- [Commits](gitpython-developers/GitPython@3.1.26...3.1.27)

---
updated-dependencies:
- dependency-name: gitpython
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Pipfile

@@ -20,4 +20,4 @@ sudden-death = {git = "https://github.com/dev-hato/sudden-death", ref = "master"
 psycopg2-binary = "==2.9.3"
 slackeventsapi = "==3.0.1"
 slackclient = "==2.9.3"
-gitpython = "==3.1.26"
+gitpython = "==3.1.27"