Update static-analysis.yml

Author: staabm

.github/workflows/static-analysis.yml

@@ -58,6 +58,7 @@ jobs:
         run: "composer install --no-interaction --no-progress"
 
       - name: "Change to simple-downgrade PHP version"
+        if: matrix.php-version == '7.4' || matrix.php-version == '8.0' || matrix.php-version == '8.1'
         uses: "shivammathur/setup-php@v2"
         with:
           coverage: "none"