Bump distlib from 0.3.7 to 0.3.9 in /sdks/python

Bumps [distlib](https://github.com/pypa/distlib) from 0.3.7 to 0.3.9.
- [Release notes](https://github.com/pypa/distlib/releases)
- [Changelog](https://github.com/pypa/distlib/blob/master/CHANGES.rst)
- [Commits](pypa/distlib@0.3.7...0.3.9)

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

Signed-off-by: dependabot[bot] <[email protected]>

sdks/python/pyproject.toml

@@ -24,7 +24,7 @@ requires = [
     "grpcio-tools==1.62.1",
     "mypy-protobuf==3.5.0",
     # Avoid https://github.com/pypa/virtualenv/issues/2006
-    "distlib==0.3.7",
+    "distlib==0.3.9",
     # Numpy headers
     "numpy>=1.14.3,<2.2.0", # Update setup.py as well.
     # having cython here will create wheels that are platform dependent.