Add condition to ecosystem CI workflow (#175)

Author: gastaldi

.github/workflows/quarkus-snapshot.yaml

@@ -13,6 +13,7 @@ concurrency:
 
 jobs:
   build:
+    if: github.event_name == 'workflow_dispatch' || github.actor == 'quarkusbot' || github.actor == 'quarkiversebot'
     uses: quarkiverse/.github/.github/workflows/quarkus-ecosystem-ci.yml@main
     secrets: inherit
     with: