Fix QA workflow syntax

(i hate yaml)

Author: gmazzap

.github/workflows/php-qa.yml

@@ -20,9 +20,9 @@ jobs:
                     ignore-platform: "--ignore-platform-reqs"
                     experimental: true
                   - php: "8.1"
-                      prefer: "highest"
-                      ignore-platform: "--ignore-platform-reqs"
-                      experimental: true
+                    prefer: "highest"
+                    ignore-platform: "--ignore-platform-reqs"
+                    experimental: true
 
         continue-on-error: ${{ matrix.experimental }}