chore: replace cs and staticanalysis with reusable workflows

.github/workflows/tests.yml

@@ -51,31 +51,11 @@ jobs:
               run: vendor/bin/phpunit
 
     style:
-      runs-on: ubuntu-latest
       name: PHP Style Check
-      steps:
-      - uses: actions/checkout@v4
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: '8.2'
-      - name: Run Script
-        run: |
-          composer install
-          composer global require friendsofphp/php-cs-fixer:^3.0
-          ~/.composer/vendor/bin/php-cs-fixer fix --dry-run --diff
+      uses: GoogleCloudPlatform/php-tools/.github/workflows/code-standards.yml@main
 
     staticanalysis:
-      runs-on: ubuntu-latest
       name: PHPStan Static Analysis
-      steps:
-      - uses: actions/checkout@v4
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: '8.2'
-      - name: Run Script
-        run: |
-          composer install
-          composer global require phpstan/phpstan:^1.8
-          ~/.composer/vendor/bin/phpstan analyse --autoload-file tests/phpstan-autoload.php
+      uses: GoogleCloudPlatform/php-tools/.github/workflows/static-analysis.yml@main
+      with:
+        autoload-file: tests/phpstan-autoload.php