Prevent istio injection for db migrations cron job (#7513)

* allow option to prevent istio injection

* make annotations more generic

* make annotations empty

* revert comment deletions

Author: lowjiansheng

deploy/charts/litellm-helm/templates/migrations-job.yaml

@@ -10,6 +10,11 @@ metadata:
     checksum/config: {{ toYaml .Values | sha256sum }}
 spec:
   template:
+    metadata:
+      annotations:
+        {{- with .Values.migrationJob.annotations }}
+        {{- toYaml . | nindent 8 }}
+        {{- end }}
     spec:
       containers:
         - name: prisma-migrations

deploy/charts/litellm-helm/values.yaml

@@ -186,5 +186,6 @@ migrationJob:
   retries: 3 # Number of retries for the Job in case of failure
   backoffLimit: 4 # Backoff limit for Job restarts
   disableSchemaUpdate: false # Skip schema migrations for specific environments. When True, the job will exit with code 0.
+  annotations: {}