Bump rector/rector from 0.17.12 to 0.18.1

Bumps [rector/rector](https://github.com/rectorphp/rector) from 0.17.12 to 0.18.1.
- [Release notes](https://github.com/rectorphp/rector/releases)
- [Commits](rectorphp/rector@0.17.12...0.18.1)

---
updated-dependencies:
- dependency-name: rector/rector
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

composer.json

@@ -1,7 +1,7 @@
 {
     "require": {
         "php": ">=7.4",
-        "rector/rector": "0.17.12",
+        "rector/rector": "0.18.1",
         "friendsofphp/php-cs-fixer": "3.22.0",
         "redaxo/php-cs-fixer-config": "^1.0"
     },