Sync config v13.5.0 : Add pages deployments uploader

Adding pages:object_store related configurations
Still not parameterized yet
See corresponding merge request:
https://gitlab.com/gitlab-org/gitlab/-/merge_requests/42461

Author: kkimurak

assets/runtime/config/gitlabhq/gitlab.yml

@@ -484,6 +484,14 @@ production: &base
     # File that contains the shared secret key for verifying access for gitlab-pages.
     # Default is '.gitlab_pages_secret' relative to Rails.root (i.e. root of the GitLab app).
     # secret_file: /home/git/gitlab/.gitlab_pages_secret
+    object_store:
+      enabled: false
+      remote_directory: pages # The bucket name
+      connection:
+        provider: AWS
+        aws_access_key_id: AWS_ACCESS_KEY_ID
+        aws_secret_access_key: AWS_SECRET_ACCESS_KEY
+        region: us-east-1
 
   ## Mattermost
   ## For enabling Add to Mattermost button
@@ -1401,6 +1409,14 @@ test:
     # user: YOUR_USERNAME
   pages:
     path: tmp/tests/pages
+    object_store:
+      enabled: false
+      remote_directory: pages # The bucket name
+      connection:
+        provider: AWS
+        aws_access_key_id: AWS_ACCESS_KEY_ID
+        aws_secret_access_key: AWS_SECRET_ACCESS_KEY
+        region: us-east-1
   repositories:
     storages:
       default: