fix: wrong indenation of yaml

Author: Kyrremann

charts/ingress-nginx/tests/default-backend-deployment_test.yaml

@@ -202,8 +202,8 @@ tests:
       defaultBackend.enabled: true
       defaultBackend.extraVolumes:
         - name: extra-volume
-            configMap:
-              name: "{{ .Release.Name }}"
+          configMap:
+            name: "{{ .Release.Name }}"
       defaultBackend.extraVolumeMounts:
         - name: extra-volume
           mountPath: /extra