fix(ci): add php-curl to pre-release Setup PHP step

updates_xml_sync.php requires cURL extension.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.mokogitea/workflows/pre-release.yml

@@ -49,7 +49,7 @@ jobs:
         run: |
           if ! command -v php &> /dev/null; then
             sudo apt-get update -qq
-            sudo apt-get install -y -qq php-cli php-mbstring php-xml php-zip >/dev/null 2>&1
+            sudo apt-get install -y -qq php-cli php-mbstring php-xml php-zip php-curl >/dev/null 2>&1
           fi
 
       - name: Setup moko-platform tools