Enos verify updates (#17586)

* Enos verify updates

- Update repo dispatch types
- Run Enos verify only on release branches

Signed-off-by: Jaymala Sinha <jaymala@hashicorp.com>

* Update as per review

Signed-off-by: Jaymala Sinha <jaymala@hashicorp.com>

Signed-off-by: Jaymala Sinha <jaymala@hashicorp.com>

.github/workflows/enos-verify-stable.yml

@@ -4,10 +4,12 @@ on:
   repository_dispatch:
     types:
       - enos-verify-stable
+      - enos-verify-stable::*
 
 jobs:
   enos-verify-stable:
     name: Enos verify stable artifact
+    if: ${{ startsWith(github.event.client_payload.payload.branch, 'release/') }}
     uses: ./.github/workflows/enos-run.yml
     with:
       artifact-source: "artifactory"