Branch docs version for Godot 4.4

.github/workflows/sync_class_ref.yml

@@ -2,12 +2,6 @@ name: Sync Class Reference
 
 on:
   workflow_dispatch:
-  # Scheduled updates only run on the default/master branch.
-  # Other branches need to be run manually (usually after a new release for that branch).
-  schedule:
-    # Run it at (European) night time every Saturday.
-    # The offset is there to try and avoid high load times.
-    - cron: '15 3 * * 6'
 
 # Make sure jobs cannot overlap.
 concurrency:
@@ -23,7 +17,7 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 10
     env:
-      engine_rev: 'master'
+      engine_rev: '4.4'
     permissions:
       contents: write
       pull-requests: write