CI: Add GPG keys to rgm, don't clone RGM just use the docker image (#71143)

* Add GPG keys to rgm, dont' clone RGM just use the docker image

* remove the cd command

* forgot to make drone :(

* idk

* reference script more specifically

* i guess we'll just cd /src

* Only show not found artifacts

scripts/drone/events/release.star

@@ -803,7 +803,7 @@ def verify_release_pipeline(
             "apt-get update && apt-get install -yq gettext",
             "printenv GCP_KEY | base64 -d > /tmp/key.json",
             "gcloud auth activate-service-account --key-file=/tmp/key.json",
-            "./scripts/list-release-artifacts.sh {} | xargs -n1 gsutil stat".format(version),
+            "./scripts/list-release-artifacts.sh {} | xargs -n1 gsutil stat | grep \"No URLs matched\"".format(version),
         ],
     }
     return pipeline(