fix: update environment name in db migrate

Author: andhreljaKern

.github/workflows/k8s_db_migrate.yml

@@ -23,8 +23,8 @@ permissions:
 jobs:
   k8-db-migrate:
     name: 'K8: Database Migrate'
-    runs-on: [self-hosted, "${{ github.ref_name }}"]
-    environment: ${{ github.ref_name }}
+    runs-on: [self-hosted, "${{ github.event_name == 'pull_request' && github.event.pull_request.base.ref || github.ref_name }}"]
+    environment: ${{ github.event_name == 'pull_request' && github.event.pull_request.base.ref || github.ref_name }}
     env:
       KUBELOGIN_VERSION: "v0.0.25"
       KUBERNETES_CLUSTER_REPO_NAME: "${{ vars.KUBERNETES_CLUSTER_REPO_NAME }}"