ci: disable branch auto-updates (#2307)

Removes the auto-update functionality of the production workflow.

Author: pfulton

.github/workflows/production.yml

@@ -60,21 +60,3 @@ jobs:
 
             - name: Convert new TODO items to issues
               uses: alstr/todo-to-issue-action@v4
-
-    autoupdate:
-      name: Auto-update pull requests
-      runs-on: ubuntu-latest
-      timeout-minutes: 5
-      permissions:
-        contents: read
-        pull-requests: write
-      steps:
-        # README: https://github.com/castastrophe/actions-pr-auto-update#auto-update-pull-requests
-        - uses: castastrophe/actions-pr-auto-update@v1.1.0
-          with:
-            token: ${{ secrets.GH_PAC_TOKEN }}
-            # Draft PRs will not be automatically updated by this utility
-            include_drafts: false
-            limit: 10
-            include_labels: auto-update
-            exclude_labels: blocked,wip,dependencies