Also, don't run this job on any branches

.circleci/config.yml

@@ -141,4 +141,6 @@ workflows:
       - dockerhubupload:
           filters:
             tags:
-              only: /v[0-9].[0-9]+.[0-9]+(.[0-9]+)?/
+              only: /^v[0-9].[0-9]+.[0-9]+(.[0-9]+)?/
+            branches:
+              ignore: /.*/