Merge branch 'main' of https://github.com/shivammathur/php-ubuntu into main

Author: shivammathur

.github/workflows/build.yml

@@ -11,6 +11,7 @@ jobs:
         operating-system: [ubuntu-20.04, ubuntu-18.04, ubuntu-16.04]
         php-versions: ['5.6', '7.0', '7.1', '7.2', '7.3', '7.4']
     name: PHP ${{ matrix.php-versions }} Test on ${{ matrix.operating-system }}
+    if: "!contains(github.event.head_commit.message, 'skip-build')"
     steps:
     - name: Checkout
       uses: actions/checkout@v2