Bump json5 and @angular-devkit/build-angular in /src_angular

Bumps [json5](https://github.com/json5/json5) to 2.2.2 and updates ancestor dependency [@angular-devkit/build-angular](https://github.com/angular/angular-cli). These dependencies need to be updated together.


Updates `json5` from 0.5.1 to 2.2.2
- [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...v2.2.2)

Updates `@angular-devkit/build-angular` from 0.8.9 to 15.0.4
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/main/CHANGELOG.md)
- [Commits](https://github.com/angular/angular-cli/commits/15.0.4)

---
updated-dependencies:
- dependency-name: json5
  dependency-type: indirect
- dependency-name: "@angular-devkit/build-angular"
  dependency-type: direct:development
...

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

src_angular/package.json

@@ -39,7 +39,7 @@
     "zone.js": "~0.8.26"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "~0.8.0",
+    "@angular-devkit/build-angular": "~15.0.4",
     "@angular/cli": "~6.2.3",
     "@angular/compiler-cli": "^6.1.0",
     "@angular/language-service": "^6.1.0",