chore: Add missing apt repository

.forgejo/workflows/tofu-plan-k8s-wheatley.yaml

@@ -16,6 +16,11 @@ jobs:
     - uses: actions/checkout@v4
     - uses: opentofu/setup-opentofu@v1
 
+    - name: Setup apt repository
+      run: |
+        echo "deb http://deb.debian.org/debian $(lsb_release -cs) main contrib non-free non-free-firmware" | tee -a /etc/apt/sources.list
+        apt update
+
     - name: Setup Wireguard
       run: |
         apt-cache policy