Rename job helm test job resources to avoid downstream duplication (#115

)

Downstream php harness uses these as static templates rather than
dynamic job configuration, so results in an error during the pvc test
when same name resources.

dynamic jobs don't include the name of the service they were in, whether
that was a right decision or not.

helm/app/tests/values-jobs.yaml

@@ -7,7 +7,7 @@ services:
   some-jobs:
     enabled: true
     jobs:
-      app-init:
+      example-app-init:
         annotations:
           helm.sh/hook: "pre-install"
           helm.sh/hook-delete-policy: "before-hook-creation"
@@ -16,7 +16,7 @@ services:
         command:
           - app
           - init
-      app-migrate:
+      example-app-migrate:
         annotations:
           helm.sh/hook: "pre-upgrade"
           helm.sh/hook-delete-policy: "before-hook-creation"