`error_prone-core` is not managed in shared-deps

[diegomarquezp]

error_prone-core is not managed by sdk-platform-java. It is unique to java-datastore.

We need a long term solution. Two options would be

• upgrade errorprone core to the latest (which supports JDK 17+ only) and drop the check for Java 8 and 11.
• Keep this fix as is until the Cloud SDK drops support for JDK 8 and 11

cc: @cindy-peng @blakeli0

Originally posted by @diegomarquezp in googleapis/java-datastore#1876 (comment)

[lqiu96]

Going to move this to sdk-platform-java as I think BigTable also uses error-prone.

Perhaps this might be some we may want to manage (?). There also may be some historical reason why we don't want to manage it via shared-deps.

For now, I just created a copy in datastore so that it can run. It's also possible that we really don't need errorprone core to run in this repo.

[lqiu96]

Inside java-datastore, I have just enabled error-prone core v2.41.0 with JDK 17+ CIs. I think as long as one JDK version runs (and fails), it should be fine. I don't think it's a requirement for error-prone to run in all JDK versions.