feat(rules): add breaking-change-exclamation-mark (#4548)

* feat(rules): add breaking-change-exclamation-mark

Implements and closes #4547.

* feat(rules): breaking-change-exclamation-mark pull request changes

Addresses review feedback from @JounQin about pull request #4548.

- Use `breakingHeaderPattern` to search for the exclamation mark in the header.
- Correct the regular expression to require that BREAKING CHANGE in the footer be anchored at the
  beginning of a line.
- Updated the `RulesConfig` type.

* feat(rules): breaking-change-exclamation-mark pull request feedback

Address pull request feedback from @JounQin.

- Fixed regex for `subject-exclamation-mark`.
- Fixed sorting for `RulesConfig`.
- Fixed sorting for `rules.md`.