Update to Google Java Format 1.23.0

[msridhar]

There are some minor formatting changes with switch statements. Also remove the old GJF plugin from libs.version.toml as we now use Spotless.

[github-actions[bot]]

Test Results

  813 files  ±0    813 suites  ±0   4h 12m 1s :stopwatch: + 3m 16s   735 tests ±0    718 :white_check_mark: ±0   17 :zzz: ±0  0 :x: ±0  5 029 runs  ±0  4 908 :white_check_mark: ±0  121 :zzz: ±0  0 :x: ±0 

Results for commit e0cc4679. ± Comparison against base commit 999faf5c.

:recycle: This comment has been updated with latest results.

[msridhar]

Going to hold off on merging this for now due to https://github.com/google/google-java-format/issues/1127.

[msridhar]

@liblit can you review again? This should work now with GJF 1.24.0