Remove old php version from github actions

Author: samuelwei

.github/workflows/build.yml

@@ -20,7 +20,7 @@ jobs:
             fail-fast: false
             matrix:
                 os: [ubuntu-latest]
-                php: ['7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
+                php: ['8.1', '8.2', '8.3', '8.4']
 
         steps:
             - name: Checkout