Bump json5, @microsoft/sp-build-web and @microsoft/sp-webpart-workbench

Bumps [json5](https://github.com/json5/json5) to 2.2.3 and updates ancestor dependencies [json5](https://github.com/json5/json5), [@microsoft/sp-build-web](http://aka.ms/spfx) and [@microsoft/sp-webpart-workbench](http://aka.ms/spfx). These dependencies need to be updated together.


Updates `json5` from 0.5.1 to 2.2.3
- [Release notes](https://github.com/json5/json5/releases)
- [Changelog](https://github.com/json5/json5/blob/main/CHANGELOG.md)
- [Commits](https://github.com/json5/json5/compare/v0.5.1...v2.2.3)

Updates `@microsoft/sp-build-web` from 1.4.1 to 1.16.1

Updates `@microsoft/sp-webpart-workbench` from 1.4.1 to 1.12.1

---
updated-dependencies:
- dependency-name: json5
  dependency-type: indirect
- dependency-name: "@microsoft/sp-build-web"
  dependency-type: direct:development
- dependency-name: "@microsoft/sp-webpart-workbench"
  dependency-type: direct:development
...

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

samples/react-tinymce/package.json

@@ -25,9 +25,9 @@
     "tinymce": "^5.10.7"
   },
   "devDependencies": {
-    "@microsoft/sp-build-web": "~1.4.1",
+    "@microsoft/sp-build-web": "~1.16.1",
     "@microsoft/sp-module-interfaces": "~1.4.1",
-    "@microsoft/sp-webpart-workbench": "~1.4.1",
+    "@microsoft/sp-webpart-workbench": "~1.12.1",
     "gulp": "~3.9.1",
     "@types/chai": ">=3.4.34 <3.6.0",
     "@types/mocha": ">=2.2.33 <2.6.0",