fix: helm template field format

Co-authored-by: Benjamin Blattberg <[email protected]>

Author: leonsteinhaeuser

helm/postgres/templates/postgres.yaml

@@ -116,7 +116,9 @@ spec:
       - name: repo1
         volume:
           volumeClaimSpec:
-            {{- if .Values.backupsStorageClassName -}}storageClassName: {{ .Values.backupsStorageClassName | quote }}{{ end }}
+            {{- if .Values.backupsStorageClassName }}
+            storageClassName: {{ .Values.backupsStorageClassName | quote }}
+            {{- end }}
             accessModes:
             - "ReadWriteOnce"
             resources: