Update rector/rector requirement from 1.0.* to 1.2.*

Updates the requirements on [rector/rector](https://github.com/rectorphp/rector) to permit the latest version.
- [Release notes](https://github.com/rectorphp/rector/releases)
- [Commits](rectorphp/rector@1.0.0...1.2.0)

---
updated-dependencies:
- dependency-name: rector/rector
  dependency-type: direct:development
...

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

composer.json

@@ -34,7 +34,7 @@
     "require-dev": {
         "maglnet/composer-require-checker": "^4.7",
         "phpunit/phpunit": "^10.5",
-        "rector/rector": "1.0.*",
+        "rector/rector": "1.2.*",
         "roave/infection-static-analysis-plugin": "^1.16",
         "spatie/phpunit-watcher": "^1.23",
         "vimeo/psalm": "^5.23",