chore(deps-dev): bump rector/rector in /vendor-bin/rector

Bumps [rector/rector](https://github.com/rectorphp/rector) from 2.5.8 to 2.6.1.
- [Release notes](https://github.com/rectorphp/rector/releases)
- [Commits](rectorphp/rector@2.5.8...2.6.1)

---
updated-dependencies:
- dependency-name: rector/rector
  dependency-version: 2.6.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

vendor-bin/rector/composer.json

@@ -1,6 +1,6 @@
 {
 	"require-dev": {
-		"rector/rector": "^2.5",
+		"rector/rector": "^2.6",
 		"nextcloud/rector": "^0.5.0"
 	},
 	"config": {