Update shivammathur/setup-php digest to 96fb539

Author: renovate[bot]

.github/workflows/azure-webapps-php.yml

@@ -38,7 +38,7 @@ jobs:
       - uses: actions/checkout@v2
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@7c0b4c8c8ebed23eca9ec2802474895d105b11bc
+        uses: shivammathur/setup-php@96fb5391340c7f3252e22dbe778b3336b49266e7
         with:
           php-version: ${{ env.PHP_VERSION }}