Update rector/rector requirement from ^0.15.1 to ^2.0.8

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@0.15.1...2.0.8)

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

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

composer.json

@@ -48,7 +48,7 @@
         "psr/container": "^2.0",
         "psr/http-factory": "^1.0",
         "psr/log": "^2.0|^3.0",
-        "rector/rector": "^0.15.1",
+        "rector/rector": "^2.0.8",
         "roave/infection-static-analysis-plugin": "^1.21",
         "spatie/phpunit-watcher": "^1.23",
         "vimeo/psalm": "^5.26.1",