Update CI workflow to remove sockets extension and adjust PHP version matrix

Author: sy-records

.github/workflows/phpstan.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-version: [ '8.1', '8.2', '8.3', '8.4', '8.5' ]
+        php-version: [ '8.3', '8.4', '8.5' ]
       max-parallel: 5
       fail-fast: false
     steps:
@@ -30,7 +30,7 @@ jobs:
         uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php-version }}
-          extensions: swoole,sockets
+          extensions: swoole
           coverage: none
 
       - name: Setup Dependencies