feat: restore workflow helper scripts for documentation updates

This commit adds steps to the GitHub Actions workflow to restore and install helper scripts from the workflow commit. These scripts are essential for managing the documentation process, ensuring that the necessary tools are available for generating and updating release notes and version mappings.

Author: skoc10

.github/workflows/update-studio-docs.yml

@@ -164,6 +164,24 @@ jobs:
           git checkout -B "$BRANCH"
           echo "BRANCH=$BRANCH" >> $GITHUB_ENV
 
+      # -------------------------------------------------
+      # Restore helper scripts from the workflow commit.
+      # The docs target branch (e.g. rel-10.4) may not contain them yet.
+      # -------------------------------------------------
+      - name: Checkout workflow scripts
+        uses: actions/checkout@v4
+        with:
+          repository: ${{ github.repository }}
+          ref: ${{ github.sha }}
+          sparse-checkout: .github/scripts
+          path: _workflow_scripts
+
+      - name: Install workflow scripts
+        run: |
+          mkdir -p .github/scripts
+          cp _workflow_scripts/.github/scripts/*.py .github/scripts/
+          ls -la .github/scripts/
+
       # -------------------------------------------------
       # Analyze existing release notes format
       # -------------------------------------------------