reenable s3 on staging pagservers by default

After deadlockk fix in https://github.com/neondatabase/neon/pull/1496 s3
seems to work normally. There is one more discovered issue but it is not
a blocker so can be fixed separately.

.circleci/ansible/deploy.yaml

@@ -63,21 +63,18 @@
       tags:
       - pageserver
 
-    # It seems that currently S3 integration does not play well
-    # even with fresh pageserver without a burden of old data.
-    # TODO: turn this back on once the issue is solved.
-    # - name: update remote storage (s3) config
-    #   lineinfile:
-    #     path: /storage/pageserver/data/pageserver.toml
-    #     line: "{{ item }}"
-    #   loop:
-    #     - "[remote_storage]"
-    #     - "bucket_name = '{{ bucket_name }}'"
-    #     - "bucket_region = '{{ bucket_region }}'"
-    #     - "prefix_in_bucket = '{{ inventory_hostname }}'"
-    #   become: true
-    #   tags:
-    #   - pageserver
+    - name: update remote storage (s3) config
+      lineinfile:
+        path: /storage/pageserver/data/pageserver.toml
+        line: "{{ item }}"
+      loop:
+        - "[remote_storage]"
+        - "bucket_name = '{{ bucket_name }}'"
+        - "bucket_region = '{{ bucket_region }}'"
+        - "prefix_in_bucket = '{{ inventory_hostname }}'"
+      become: true
+      tags:
+      - pageserver
 
     - name: upload systemd service definition
       ansible.builtin.template: