chore(ci): remove system test trigger, add emojis (#8487)

Author: bshaffer

.github/workflows/release-checks.yaml

@@ -111,9 +111,9 @@ jobs:
               SUBREPO=$(cat $COMPONENT/composer.json | jq -r '.extra.component.target')
               echo "New component found: $COMPONENT"
               if curl --head --silent --fail "https://api.github.com/repos/$SUBREPO" -H 'Authorization: Bearer ${{secrets.SPLIT_TOKEN}}' > /dev/null; then
-                  echo " - Target Repo '$SUBREPO' exists"
+                  echo "✅ Target Repo '$SUBREPO' exists"
               else
-                  echo " - Target Repo '$SUBREPO' DOES NOT EXIST"
+                  echo "❌ Target Repo '$SUBREPO' DOES NOT EXIST"
                   FAIL="true"
               fi
             fi

.github/workflows/system-tests.yaml

@@ -1,6 +1,7 @@
 name: System Tests
 on:
-  pull_request:
+  # This is failing because we don't have a service account key
+  # they need to be moved to kokoro instead
   workflow_dispatch:
 jobs:
   # Run system tests on the release PR