add workspace ownership reset after book build

Author: trevorcampbell

.github/workflows/deploy_pr_preview.yml

@@ -23,7 +23,14 @@ jobs:
           checkName: "Rebuild docker image"
           ref: ${{ github.event.pull_request.head.sha }}
           timeoutSeconds: 60000
-
+          
+      - name: Get Actions user id
+        id: get_uid
+        run: |
+          actions_user_id=`id -u $USER`
+          echo $actions_user_id
+          echo "uid=$actions_user_id" >> $GITHUB_OUTPUT
+          
       - name: Checkout the repo
         uses: actions/checkout@v2
         with:
@@ -34,6 +41,11 @@ jobs:
         run: |
           ./build_html.sh
 
+      - name: Reset ownership of workspace after build
+        uses: peter-murray/reset-workspace-ownership-action@v1
+        with:
+          user_id: ${{ steps.get_uid.outputs.uid }}
+
        # Push the book's HTML to github-pages
       - name: GitHub Pages action
         uses: peaceiris/[email protected]
@@ -65,7 +77,6 @@ jobs:
           destination_dir: diff${{ github.event.number }}
           # force_orphan: true # once peaceiris updates to v4, change this to true and keep_files: true for the PR / main branch deploy previews
 
-
       - name: Post URLS to PR thread
         uses: mshick/[email protected]
         with: