chore: make 2.0 RC builds optional (#19900)

.circleci/config.yml

@@ -545,9 +545,9 @@ workflows:
       - litmus_nightly:
           requires:
             - deploy-nightly
-      - selenium_accept:
+      # - selenium_accept:
-          requires:
+      #    requires:
-            - deploy-nightly
+      #      - deploy-nightly
       - grace_nightly:
           requires:
             - deploy-nightly
@@ -558,31 +558,31 @@ workflows:
             branches:
               ignore: /.*/
             tags:
-              only: /^v[0-9]+\.[0-9]+\.[0-9]+-(rc|alpha|beta)\.[0-9]+$/
+              only: /^v[0-9]+\.[0-9]+\.[0-9]+(-(rc|alpha|beta)\.[0-9]+)?$/
       - golint:
           filters:
             branches:
               ignore: /.*/
             tags:
-              only: /^v[0-9]+\.[0-9]+\.[0-9]+-(rc|alpha|beta)\.[0-9]+$/
+              only: /^v[0-9]+\.[0-9]+\.[0-9]+(-(rc|alpha|beta)\.[0-9]+)?$/
       - lint-feature-flags:
           filters:
             branches:
               ignore: /.*/
             tags:
-              only: /^v[0-9]+\.[0-9]+\.[0-9]+-(rc|alpha|beta)\.[0-9]+$/
+              only: /^v[0-9]+\.[0-9]+\.[0-9]+(-(rc|alpha|beta)\.[0-9]+)?$/
       - jstest:
           filters:
             branches:
               ignore: /.*/
             tags:
-              only: /^v[0-9]+\.[0-9]+\.[0-9]+-(rc|alpha|beta)\.[0-9]+$/
+              only: /^v[0-9]+\.[0-9]+\.[0-9]+(-(rc|alpha|beta)\.[0-9]+)?$/
       - jslint:
           filters:
             branches:
               ignore: /.*/
             tags:
-              only: /^v[0-9]+\.[0-9]+\.[0-9]+-(rc|alpha|beta)\.[0-9]+$/
+              only: /^v[0-9]+\.[0-9]+\.[0-9]+(-(rc|alpha|beta)\.[0-9]+)?$/
       - release:
           requires:
             - gotest
@@ -594,4 +594,4 @@ workflows:
             branches:
               ignore: /.*/
             tags:
-              only: /^v[0-9]+\.[0-9]+\.[0-9]+-(rc|alpha|beta)\.[0-9]+$/
+              only: /^v[0-9]+\.[0-9]+\.[0-9]+(-(rc|alpha|beta)\.[0-9]+)?$/