Bump gitpython from 3.1.46 to 3.1.47 (#19731)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

poetry.lock

@@ -292,7 +292,7 @@ dev = [
     # The following are used by the release script
     "click>=8.1.3",
     # GitPython was == 3.1.14; bumped to 3.1.20, the first release with type hints.
-    "GitPython>=3.1.20",
+    "GitPython>=3.1.47",
     "markdown-it-py>=3.0.0",
     "pygithub>=1.59",
     # The following are executed as commands by the release script.