chore(deps): update swoole/phpx dependency version

- Updated swoole/phpx from ~2.6.8 to ~2.6.9 in composer.json
- Bumped minor version to incorporate latest bug fixes and improvements
- Maintained compatibility with existing codebase integration

composer.json

@@ -21,7 +21,7 @@
     "marcj/topsort": "^2.0",
     "symfony/var-dumper": "^8.0",
     "symfony/yaml": "^8.0",
-    "swoole/phpx": "~2.6.8",
+    "swoole/phpx": "~2.6.9",
     "ajaxray/ansikit": "^0.3",
     "ext-dom": "*"
   },