Add filter for CircleCI workflow build job (#38)

Author: Oliver Hsu

.circleci/config.yml

@@ -97,7 +97,10 @@ workflows:
   version: 2
   build-and-deploy:
     jobs:
-      - build
+      - build:
+          filters:
+            tags:
+              only: /.*/
 
       - publish-github-release:
           requires: