Add Actions known issue after restoring (#25516)

Co-authored-by: hubwriter <hubwriter@github.com>

Author: kgrzebien

data/release-notes/enterprise-server/3-4/0-rc1.yml

@@ -234,6 +234,7 @@ sections:
     - When "Users can search GitHub.com" is enabled with GitHub Connect, issues in private and internal repositories are not included in GitHub.com search results.
     - The {% data variables.product.prodname_registry %} npm registry no longer returns a time value in metadata responses. This was done to allow for substantial performance improvements. We continue to have all the data necessary to return a time value as part of the metadata response and will resume returning this value in the future once we have solved the existing performance issues.
     - Resource limits that are specific to processing pre-receive hooks may cause some pre-receive hooks to fail.
+    - Actions services needs to be restarted after restoring appliance from backup taken on a different host.
 
   deprecations:
     - heading: Deprecation of GitHub Enterprise Server 3.0