build(deps): update protobuf requirement from <=3.20.1 to <=4.23.3 in /requirements

[dependabot[bot]]

Updates the requirements on protobuf to permit the latest version.

Commits

• 4dd15db Updating version.json and repo version numbers to: 23.3
• 58b6ddb Regenerate stale files (#13046)
• bea53aa Updated upb dep to the latest 23.x commit. (#13043)
• f5efaf9 Merge pull request #13017 from protocolbuffers/force-refresh-23
• 821c51e Disable non-hermetic breakage due to github runner update
• c4bbdcf Fix staleness test branching logic
• 901cfbe Cleanup scheduled staleness tests.
• 9980541 Force push auto-commits to bypass branch protection status checks
• cd78bee deps: Update Guava to 32.0.0 (#13002)
• 647052a Merge pull request #12997 from fowles/23.x
• Additional commits viewable in compare view

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[codecov[bot]]

Codecov Report

Merging #1615 (b09c906) into master (1d871c1) will increase coverage by 23%. The diff coverage is n/a.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1615 +/- ## ======================================== + Coverage 56% 79% +23% ======================================== Files 291 291 Lines 12867 12867 ======================================== + Hits 7265 10188 +2923 + Misses 5602 2679 -2923 ```

[dependabot[bot]]

Superseded by #1641.