Paths ignore for downstream tests (#304)

Author: jishnub

.github/workflows/downstream.yml

@@ -2,7 +2,11 @@ name: IntegrationTest
 on:
   push:
     branches: [master]
-    tags: [v*]
+    tags: 'v*'
+    paths-ignore:
+      - 'LICENSE'
+      - 'README.md'
+      - '.github/workflows/TagBot.yml'
   pull_request:
     paths-ignore:
       - 'LICENSE'