Bump the angular group across 1 directory with 5 updates

Bumps the angular group with 5 updates in the / directory:

| Package | From | To |
| --- | --- | --- |
| [@angular-eslint/builder](https://github.com/angular-eslint/angular-eslint/tree/HEAD/packages/builder) | `20.1.1` | `21.3.1` |
| [@angular-eslint/eslint-plugin](https://github.com/angular-eslint/angular-eslint/tree/HEAD/packages/eslint-plugin) | `20.1.1` | `21.3.1` |
| [@angular-eslint/eslint-plugin-template](https://github.com/angular-eslint/angular-eslint/tree/HEAD/packages/eslint-plugin-template) | `20.1.1` | `21.3.1` |
| [@angular-eslint/schematics](https://github.com/angular-eslint/angular-eslint/tree/HEAD/packages/schematics) | `20.1.1` | `21.3.1` |
| [@angular-eslint/template-parser](https://github.com/angular-eslint/angular-eslint/tree/HEAD/packages/template-parser) | `20.1.1` | `21.3.1` |



Updates `@angular-eslint/builder` from 20.1.1 to 21.3.1
- [Release notes](https://github.com/angular-eslint/angular-eslint/releases)
- [Changelog](https://github.com/angular-eslint/angular-eslint/blob/main/packages/builder/CHANGELOG.md)
- [Commits](https://github.com/angular-eslint/angular-eslint/commits/v21.3.1/packages/builder)

Updates `@angular-eslint/eslint-plugin` from 20.1.1 to 21.3.1
- [Release notes](https://github.com/angular-eslint/angular-eslint/releases)
- [Changelog](https://github.com/angular-eslint/angular-eslint/blob/main/packages/eslint-plugin/CHANGELOG.md)
- [Commits](https://github.com/angular-eslint/angular-eslint/commits/v21.3.1/packages/eslint-plugin)

Updates `@angular-eslint/eslint-plugin-template` from 20.1.1 to 21.3.1
- [Release notes](https://github.com/angular-eslint/angular-eslint/releases)
- [Changelog](https://github.com/angular-eslint/angular-eslint/blob/main/packages/eslint-plugin-template/CHANGELOG.md)
- [Commits](https://github.com/angular-eslint/angular-eslint/commits/v21.3.1/packages/eslint-plugin-template)

Updates `@angular-eslint/schematics` from 20.1.1 to 21.3.1
- [Release notes](https://github.com/angular-eslint/angular-eslint/releases)
- [Changelog](https://github.com/angular-eslint/angular-eslint/blob/main/packages/schematics/CHANGELOG.md)
- [Commits](https://github.com/angular-eslint/angular-eslint/commits/v21.3.1/packages/schematics)

Updates `@angular-eslint/template-parser` from 20.1.1 to 21.3.1
- [Release notes](https://github.com/angular-eslint/angular-eslint/releases)
- [Changelog](https://github.com/angular-eslint/angular-eslint/blob/main/packages/template-parser/CHANGELOG.md)
- [Commits](https://github.com/angular-eslint/angular-eslint/commits/v21.3.1/packages/template-parser)

---
updated-dependencies:
- dependency-name: "@angular-eslint/builder"
  dependency-version: 21.3.1
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: angular
- dependency-name: "@angular-eslint/eslint-plugin"
  dependency-version: 21.3.1
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: angular
- dependency-name: "@angular-eslint/eslint-plugin-template"
  dependency-version: 21.3.1
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: angular
- dependency-name: "@angular-eslint/schematics"
  dependency-version: 21.3.1
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: angular
- dependency-name: "@angular-eslint/template-parser"
  dependency-version: 21.3.1
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: angular
...

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

Author: dependabot[bot]