CI: Use setup action in container-publish.yml

This somehow missed the DRY conversion.

.github/workflows/container-publish.yml

@@ -31,25 +31,14 @@ jobs:
     steps:
     - uses: actions/checkout@v4
 
-    - name: Preparing Vault password file
-      run: |
-        echo "$ANSIBLE_VAULT_PASSWORD" > "$ANSIBLE_VAULT_PASSWORD_FILE"
-      env:
-        ANSIBLE_VAULT_PASSWORD: ${{ secrets.ANSIBLE_VAULT_PASSWORD }}
-
-    - name: Installing dependencies
-      run: |
-        sudo apt update &&
-        sudo apt install -y python3-venv &&
-        python3 -m venv venv &&
-        source venv/bin/activate &&
-        pip install -U pip && 
-        pip install -r requirements.txt &&
-        ansible-galaxy collection install -r requirements.yml -p ansible/collections
+    - name: Setup Release Train & dependencies
+      uses: ./.github/actions/setup
+      with:
+        vault-password: ${{ secrets.ANSIBLE_VAULT_PASSWORD }}
+        vault-password-file: ${{ env.ANSIBLE_VAULT_PASSWORD_FILE }}
 
     - name: Publish container repositories
       run: |
-        source venv/bin/activate &&
         ansible-playbook -i ansible/inventory \
         ansible/dev-pulp-container-publish.yml \
         -e kolla_container_image_filter="'$FILTER'" \