Bump xmldom and @angular/cli

Removes [xmldom](https://github.com/xmldom/xmldom). It's no longer used after updating ancestor dependency [@angular/cli](https://github.com/angular/angular-cli). These dependencies need to be updated together.


Removes `xmldom`

Updates `@angular/cli` from 1.4.8 to 1.7.4
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/main/CHANGELOG.md)
- [Commits](angular/angular-cli@v1.4.8...v1.7.4)

---
updated-dependencies:
- dependency-name: xmldom
  dependency-type: indirect
- dependency-name: "@angular/cli"
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]