composer(deps-dev): bump symplify/easy-coding-standard

Bumps [symplify/easy-coding-standard](https://github.com/easy-coding-standard/easy-coding-standard) from 12.1.14 to 12.3.4.
- [Release notes](https://github.com/easy-coding-standard/easy-coding-standard/releases)
- [Commits](easy-coding-standard/easy-coding-standard@12.1.14...12.3.4)

---
updated-dependencies:
- dependency-name: symplify/easy-coding-standard
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -18,7 +18,7 @@
         "infection/infection": "0.27.11",
         "phpunit/phpunit": "10.5.15",
         "psalm/plugin-phpunit": "0.19.0",
-        "symplify/easy-coding-standard": "12.1.14",
+        "symplify/easy-coding-standard": "12.3.4",
         "vimeo/psalm": "5.24.0"
     },
     "autoload": {