Migrate from JSR305's javax.annotation.CheckReturnValue to ErrorProne's com.google.errorprone.annotations.CheckReturnValue

[dapengzhang0]

Initiated by cl/408694635

[kluever]

See also cl/408694507

[RamAnvesh]

Hi Any update on this?

Summary of the issue: When using grpc-java in a modularized application, I was facing issues with javax.annotation.Generated annotation. The fix for this suggested was to add javax.annotation-api as a dependency. But after doing this, the javax.annotation.CheckReturnValue is not being read from the jsr-305 jar.