run test only if paths is not empty

Author: David Cavazos

.github/workflows/custard-run-dev.yaml

@@ -54,6 +54,7 @@ jobs:
       create-check-if: ${{ !!github.event.workflow_run }}
 
   test:
+    if: needs.affected.outputs.paths
     needs: affected
     runs-on: ubuntu-latest
     timeout-minutes: 120 # 2 hours hard limit
@@ -62,7 +63,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        path: ${{ fromJson(needs.affected.outputs.paths) }}
+        path: ${{ needs.affected.outputs.paths }}
     continue-on-error: true
     env:
       GOOGLE_SAMPLES_PROJECT: long-door-651

.github/workflows/custard-run.yaml

@@ -93,6 +93,7 @@ jobs:
           status: failure
 
   test:
+    if: needs.affected.outputs.paths
     needs: affected
     runs-on: ubuntu-latest
     timeout-minutes: 120 # 2 hours hard limit