Bump json5 and @angular-devkit/build-angular

Bumps [json5](https://github.com/json5/json5) to 2.2.3 and updates ancestor dependency [@angular-devkit/build-angular](https://github.com/angular/angular-cli). These dependencies need to be updated together.


Updates `json5` from 1.0.1 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/v1.0.1...v2.2.3)

Updates `@angular-devkit/build-angular` from 0.802.2 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>

package.json

@@ -31,7 +31,7 @@
     "zone.js": "~0.9.1"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "~0.802.2",
+    "@angular-devkit/build-angular": "~15.0.4",
     "@angular/cli": "~8.2.2",
     "@angular/compiler-cli": "~8.2.0",
     "@angular/language-service": "~8.2.0",
@@ -41,7 +41,7 @@
     "codelyzer": "^5.0.0",
     "jasmine-core": "~3.4.0",
     "jasmine-spec-reporter": "~4.2.1",
-    "karma": "~6.4.1",
+    "karma": "~4.1.0",
     "karma-chrome-launcher": "~2.2.0",
     "karma-coverage-istanbul-reporter": "~2.0.1",
     "karma-jasmine": "~2.0.1",