Add test coverage for grpc GlobalInterceptor method annotation

[jedla97]

Summary

Add test coverage for quarkusio/quarkus#21358. Testing both server and client interceptor.

Please select the relevant options.

• Bug fix (non-breaking change which fixes an issue)
• Dependency update
• Refactoring
• Backport
• New scenario (non-breaking change which adds functionality)
• This change requires a documentation update
• This change requires execution against OCP (use run tests phrase in comment)

Checklist:

• Methods and classes used in PR scenarios are meaningful
• Commits are well encapsulated and follow the best practices

[jedla97]

run tests

[jedla97]

run tests

[jedla97]

Updated it with more realistic usecase. And adding tag to RH Quarkus jira.

Now it's workflow intercept client -> intercept server -> server read added header by client -> server add to Context -> context is propagated to service.

This testing global interceptor for class and methods which each intercepted call (method and class) have own constant used to pass client intercepted data to next step.

[michalvavrik]

Good research, nice job.