change workflows to php 8.1

Author: passchn

.github/workflows/ci.yml

@@ -13,11 +13,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-version: ['8.0']
+        php-version: ['8.1']
         db-type: ['sqlite', 'mysql', 'pgsql']
         prefer-lowest: ['']
         include:
-          - php-version: '8.0'
+          - php-version: '8.1'
             db-type: 'sqlite'
             prefer-lowest: 'prefer-lowest'
 
@@ -90,7 +90,7 @@ jobs:
         run: if ${{ matrix.prefer-lowest == 'prefer-lowest' }}; then vendor/bin/validate-prefer-lowest -m; fi
 
       - name: Code Coverage Report
-        if: success() && matrix.php-version == '8.0' && matrix.db-type == 'sqlite'
+        if: success() && matrix.php-version == '8.1' && matrix.db-type == 'sqlite'
         uses: codecov/codecov-action@v1
 
   validation:
@@ -103,7 +103,7 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.0'
+          php-version: '8.1'
           extensions: mbstring, intl
           coverage: none