chore: update action script, only test on php 8.0+

Author: inhere

.github/workflows/php.yml

@@ -9,14 +9,14 @@ on:
 
 jobs:
   test:
-    name: Test on php ${{ matrix.php}} and ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
+    name: Test on php ${{ matrix.php}}
+    runs-on: ubuntu-latest
     timeout-minutes: 10
     strategy:
       fail-fast: true
       matrix:
-        php: [7.3, 7.4, 8.0] #
-        os: [ubuntu-latest, macOS-latest] # windows-latest,
+        php: [8.0] # 7.3, 7.4,
+#        os: [ubuntu-latest] # windows-latest,
 #        include:
 #          - os: 'ubuntu-latest'
 #            php: '7.2'