build(deps): bump google-cloud-storage in /examples/python (#825)

Bumps [google-cloud-storage](https://github.com/googleapis/python-storage) from 2.3.0 to 2.4.0.
- [Release notes](https://github.com/googleapis/python-storage/releases)
- [Changelog](https://github.com/googleapis/python-storage/blob/main/CHANGELOG.md)
- [Commits](googleapis/python-storage@v2.3.0...v2.4.0)

---
updated-dependencies:
- dependency-name: google-cloud-storage
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

examples/python/requirements.txt

@@ -21,7 +21,7 @@ google-auth==2.2.1
     #   google-cloud-storage
 google-cloud-core==2.3.0
     # via google-cloud-storage
-google-cloud-storage==2.3.0
+google-cloud-storage==2.4.0
     # via -r requirements.in
 google-crc32c==1.3.0
     # via google-resumable-media
@@ -34,7 +34,6 @@ idna==3.2
 protobuf==3.18.1
     # via
     #   google-api-core
-    #   google-cloud-storage
     #   googleapis-common-protos
 pyasn1==0.4.8
     # via