chore(ci): ensure a branch is checked out even in pull_request runs

.github/workflows/build-and-deploy.yml

@@ -45,6 +45,15 @@ jobs:
           fetch-depth: 50
           submodules: true
 
+      - name: Get branch name
+        id: branch-name
+        uses: tj-actions/branch-names@v7
+
+      - name: "Checkout branch"
+        if: steps.branch-name.outputs.is_default == 'false'
+        run: |
+          git checkout ${{ steps.branch-name.outputs.current_branch }}
+
       - name: "Install system dependencies"
         run: |
           sudo apt-get install brotli pigz parallel rename --yes -qq >/dev/null