Changelog update for community PR (#520)

* Added changelog entry for the community PR that adds the tabIndex prop

* Bumb minor version

Author: danoaky-tiny

CHANGELOG.md

@@ -6,6 +6,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+### Added
+- Added `tabIndex` prop. Community PR acknowledgement: Grand Julivan <[email protected]>
+
 ## 5.0.0 - 2024-03-27
 
 ### Added

package.json

@@ -70,6 +70,6 @@
     "typescript": "~5.4.3",
     "vite": "^5.2.2"
   },
-  "version": "5.0.2-rc",
+  "version": "5.1.0-rc",
   "name": "@tinymce/tinymce-react"
 }