use manual git pull in penpot ci

.forgejo/workflows/build_penpot.yml

@@ -18,19 +18,16 @@ jobs:
         image-type: [ frontend, backend, exporter ]
     steps:
       - name: Install required system packages
-        run: apk add --no-cache nodejs
+        run: apk add --no-cache nodejs git curl
 
-      - name: Setup penpot repo
-        uses: actions/checkout@v6
-        with:
-          github-server-url: github.com
-          repository: penpot/penpot.git
-          ref: ${{ matrix.image-penpot-version }}
-          submodules: recursive
-          path: penpot
+      - name: Clone penpot repo
+        run: |
+          git clone --branch="${{ matrix.penpot-version }}" https://github.com/penpot/penpot.git "${{ forgejo.workspace }}/penpot"
+          cd "${{ forgejo.workspace }}/penpot"
+          git submodule update --init --recursive
 
       - name: Patch penpot to work with kaniko
-        run: |
+        run: |          
           # Get build system patch allowing for building images with kaniko.
           # https://github.com/penpot/penpot/pull/4945
           # https://github.com/penpot/penpot/pull/4945/commits/752574bac789cc90cc218004bb9545cc6239895d