test: add custom workflow to run based upon comment on PR(take 1)

Signed-off-by: Vibhu Prashar <[email protected]>

.github/workflows/custom-test.yaml

@@ -5,7 +5,7 @@ on:
 
 jobs:
   test:
-    if: github.event.issue.pull_request && contains(github.event.comment.body, '/test')
+    if: github.event.issue.pull_request && matches(github.event.comment.body, '/test')
     runs-on: ubuntu-latest
     steps:
       - name: Checkout