[master] Fix indentation of annotation (#16614)

* Fix indentation of annotation

* add missing snippet

---------

Co-authored-by: German Robayo <[email protected]>

Author: istio-testing

content/en/docs/tasks/traffic-management/ingress/gateway-api/index.md

@@ -235,7 +235,7 @@ data:
   deployment: |
     metadata:
       annotations:
-      additional-annotation: some-value
+        additional-annotation: some-value
     spec:
       replicas: 4
       template:

content/en/docs/tasks/traffic-management/ingress/gateway-api/snips.sh

@@ -173,7 +173,7 @@ data:
   deployment: |
     metadata:
       annotations:
-      additional-annotation: some-value
+        additional-annotation: some-value
     spec:
       replicas: 4
       template: