Update shivammathur/setup-php digest to 203a3dc

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@203a3dc959af37a4245c6881cf1108918fa67726
         with:
           php-version: ${{ env.PHP_VERSION }}