chore: update PagerDuty integration key to service ID

Author: tfhartmann

catalog-info.yaml

@@ -16,7 +16,7 @@ metadata:
     - bits-tools
   annotations:
     backstage.io/kubernetes-id: backstage
-    pagerduty.com/integration-key: 2dfe75f325ae4b0bd0735b72b4c08f32
+    pagerduty.com/service-id: PZN5Q22
     github.com/project-slug: broadinstitute/backstage
     google.com/cloudbuild-project-slug: bits-gke-clusters
     google.com/cloudbuild-repo-name: backstage