Reduce redundancies in the GitHub Actions configuration

Co-authored-by: Pierre Gordon <[email protected]>

Author: oliverklee

.github/workflows/ci.yml

@@ -17,23 +17,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        php-version: ['5.3', '5.4', '5.5', '5.6', '7.0', '7.1', '7.2', '7.3']
+        coverage: ['none']
         include:
-          - php-version: 5.3
-            coverage: none
-          - php-version: 5.4
-            coverage: none
-          - php-version: 5.5
-            coverage: none
-          - php-version: 5.6
-            coverage: none
-          - php-version: 7.0
-            coverage: none
-          - php-version: 7.1
-            coverage: none
-          - php-version: 7.2
-            coverage: none
-          - php-version: 7.3
-            coverage: none
           - php-version: 7.4
             coverage: xdebug