CI: update deken installation

Author: mgeier

.github/workflows/main.yml

@@ -219,12 +219,22 @@ jobs:
           cargo cinstall --verbose
 
   deken-package:
-    # The deken package seems to be missing on 22.04:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
+    container: registry.git.iem.at/pd/deken
     needs: [Linux, macOS, Windows-MSYS2]
     steps:
+      - name: Install Git
+        run: |
+          apt-get update
+          apt-get install --assume-yes --no-install-recommends git
       - name: Clone Git repository
         uses: actions/checkout@v4
+        with:
+          # check out all tags to get proper version in Deken package
+          fetch-depth: 0
+      - name: git clone fix
+        # https://github.com/actions/checkout/issues/1169:
+        run: git config --system --add safe.directory $GITHUB_WORKSPACE
       - name: Retrieve Linux external
         uses: actions/download-artifact@v4
         with:
@@ -243,12 +253,6 @@ jobs:
       - name: Copy help patch and source file
         run: |
           cp pure-data/asdf~* asdf
-      - name: Install deken
-        run: |
-          sudo apt-get install --no-install-recommends deken
-          # work-arounds from https://github.com/pure-data/deken/issues/247:
-          mkdir ~/.deken
-          python3 -m pip install hy==0.19
       - name: Run deken
         run: |
           deken package -v $(git describe --tags --always) --objects pure-data/objects.txt asdf