feat: Add the google.rpc.context.AuditContext and google.rpc.http message to the open source

[suztomo]

Regeneration of the code based on googleapis/java-common-protos#491

Command:

suztomo@suztomo:~/gapic-generator-java$ docker run --rm --user $(id -u):$(id -g)   -v $(pwd):/repo -v /tmp/googleapis-gen:/googleapis-gen -w /repo   --env HOME=/tmp   gcr.io/cloud-devrel-public-resources/owlbot-cli:latest copy-code   --source-repo=/googleapis-gen   --config-file=java-common-protos/.OwlBot.yaml

Copying metadata from googleapis/java-common-protos#491:

PiperOrigin-RevId: 495222106

Source-Link: googleapis/googleapis@f36c650

Source-Link: https://github.com/googleapis/googleapis-gen/commit/8c5e5f8a29444bbc2c91df29b059e0c7f1fa13af
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiOGM1ZTVmOGEyOTQ0NGJiYzJjOTFkZjI5YjA1OWUwYzdmMWZhMTNhZiJ9

BEGIN_NESTED_COMMIT
build: remove obsolete field in client.proto
PiperOrigin-RevId: 493425327

Source-Link: googleapis/googleapis@d7687dc

Source-Link: https://github.com/googleapis/googleapis-gen/commit/d6989a57a11a571973bcba915da8d0cd25dc9fb1
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiZDY5ODlhNTdhMTFhNTcxOTczYmNiYTkxNWRhOGQwY2QyNWRjOWZiMSJ9
END_NESTED_COMMIT

[sonarqubecloud]

SonarCloud Quality Gate failed.   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
22 Code Smells

0.0% Coverage
50.2% Duplication

[suztomo]

SonarCloud Code Analysis Failing after 1m — Quality Gate failed

The protobuf-generated code does not come with test. This is expected.

[suztomo]

@likeulb @meltsufin This is the same code generation as googleapis/java-common-protos#491, with regard to email "Re: Question about the maven repositiory"

[suztomo]

(I forgot to add the metadata in the commit log. But it should be fine)