Add docker version

.github/workflows/blank.yml

@@ -12,6 +12,8 @@ jobs:
     - uses: actions/checkout@v1
     - name: Show php version
       run: php${{ matrix.php }} -v && composer -V
+    - name: Docker version
+      run: docker -v
     - name: Install dependencies
       run: composer install --no-interaction --prefer-source
     - name: Run unit tests