Bump @schematics/angular from 19.2.14 to 20.3.7

Bumps [@schematics/angular](https://github.com/angular/angular-cli) from 19.2.14 to 20.3.7.
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/main/CHANGELOG.md)
- [Commits](angular/angular-cli@19.2.14...20.3.7)

---
updated-dependencies:
- dependency-name: "@schematics/angular"
  dependency-version: 20.3.7
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]