Update symplify/easy-coding-standard requirement || ^12.0.0

Updates the requirements on [symplify/easy-coding-standard](https://github.com/easy-coding-standard/easy-coding-standard) to permit the latest version.
- [Release notes](https://github.com/easy-coding-standard/easy-coding-standard/releases)
- [Commits](easy-coding-standard/easy-coding-standard@11.1.0...12.0.6)

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

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

Author: dependabot[bot]

composer.json

@@ -26,7 +26,7 @@
     ],
     "require-dev": {
         "phpunit/phpunit": "^9.5.0",
-        "symplify/easy-coding-standard": "^11.1.0",
+        "symplify/easy-coding-standard": "^11.1.0 || ^12.0.0",
         "symfony/polyfill-intl-grapheme": "^1.26.0",
         "phpstan/phpstan": "^1.8.0",
         "infection/infection": "^0.26.0",