chore(deps-dev): update rector/rector requirement from 1.2.7 to 1.2.8

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@1.2.7...1.2.8)

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

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

composer.json

@@ -28,7 +28,7 @@
         "phpunit/phpcov": "^9.0.2 || ^10.0",
         "phpunit/phpunit": "^10.5.16 || ^11.2",
         "predis/predis": "^1.1 || ^2.0",
-        "rector/rector": "1.2.7"
+        "rector/rector": "1.2.8"
     },
     "replace": {
         "codeigniter4/framework": "self.version"