Adds or updates tags for a resource in AWS CodeCommit. For a list of valid resources in AWS CodeCommit, see <a href="https://docs.aws.amazon.com/codecommit/latest/userguide/auth-and-access-control-iam-access-control-identity-based.html#arn-formats">CodeCommit Resources and Operations</a> in the <i>AWS CodeCommit User Guide</i>.