build(deps-dev): bump @angular-eslint/schematics from 4.3.0 to 12.1.0

Bumps [@angular-eslint/schematics](https://github.com/angular-eslint/angular-eslint/tree/HEAD/packages/schematics) from 4.3.0 to 12.1.0.
- [Release notes](https://github.com/angular-eslint/angular-eslint/releases)
- [Changelog](https://github.com/angular-eslint/angular-eslint/blob/master/packages/schematics/CHANGELOG.md)
- [Commits](https://github.com/angular-eslint/angular-eslint/commits/v12.1.0/packages/schematics)

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

package.json

@@ -383,7 +383,7 @@
     "@angular-eslint/builder": "4.3.0",
     "@angular-eslint/eslint-plugin": "4.3.0",
     "@angular-eslint/eslint-plugin-template": "4.3.0",
-    "@angular-eslint/schematics": "4.3.0",
+    "@angular-eslint/schematics": "12.1.0",
     "@angular-eslint/template-parser": "4.3.0",
     "@angular/cli": "^12.0.2",
     "@angular/compiler-cli": "^12.1.0-next.3",