chore(deps): bump tinymce from 8.3.2 to 8.4.0

Bumps [tinymce](https://github.com/tinymce/tinymce/tree/HEAD/modules/tinymce) from 8.3.2 to 8.4.0.
- [Changelog](https://github.com/tinymce/tinymce/blob/main/modules/tinymce/CHANGELOG.md)
- [Commits](https://github.com/tinymce/tinymce/commits/8.4.0/modules/tinymce)

---
updated-dependencies:
- dependency-name: tinymce
  dependency-version: 8.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

bun.lock

@@ -31,7 +31,7 @@
     "keymaster": "^1.6.2",
     "select2": "github:select2/select2#3.5.4",
     "sortablejs": "^1.15.7",
-    "tinymce": "^8.3.2"
+    "tinymce": "^8.4.0"
   },
   "devDependencies": {
     "@herb-tools/linter": "^0.8.10",