Update symplify/easy-coding-standard requirement from ^12.1 to ^13.1

Updates the requirements on [symplify/easy-coding-standard](https://github.com/easy-coding-standard/ecs) to permit the latest version.
- [Release notes](https://github.com/easy-coding-standard/ecs/releases)
- [Commits](ecsphp/ecs@12.1.0...13.1.2)

---
updated-dependencies:
- dependency-name: symplify/easy-coding-standard
  dependency-version: 13.1.2
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

composer.json

@@ -14,7 +14,7 @@
     },
     "require-dev": {
         "maglnet/composer-require-checker": "^4.7",
-        "symplify/easy-coding-standard": "^12.1",
+        "symplify/easy-coding-standard": "^13.1",
         "vimeo/psalm": "^5.19"
     },
     "autoload": {