ci: use cache-apt-pkgs-action to install sharkd

.github/workflows/testing.yml

@@ -33,20 +33,11 @@ jobs:
         python -m pip install --upgrade pip
         python -m pip install .[ai-features,dev]
 
-    - name: Cache APT packages
-      id: apt-cache
-      uses: actions/cache@v6
-      with:
-        path: /var/cache/apt/archives
-        key: ${{ runner.os }}-apt-packages-${{ hashFiles('**/apt-packages.txt') }}
-        restore-keys: |
-          ${{ runner.os }}-apt-packages-
-
     - name: Install sharkd (marker replay engine)
-      run: |
-        echo "Cache Hit Status: ${{ steps.apt-cache.outputs.cache-hit }}"
-        sudo apt-get update
-        sudo apt-get install -y wireshark-common
+      uses: awalsh128/cache-apt-pkgs-action@latest
+      with:
+        packages: wireshark-common
+        version: linux-amd64
 
     - name: Run all checks
       run: |