Merge #385: chore: update CODEOWNERS with ValuedMammal and oleonardolima

3f90422 chore: update CODEOWNERS with ValuedMammal and oleonardolima (Steve Myers)

Pull request description:

  ### Description

  Updated CODEOWNERS file to cover all files in the repo and include both primary and secondary maintainers ValuedMammal and @oleonardolima.

  ### Notes to the reviewers

  This will trigger a review request for above maintainers for any file changes in the repo.

  see: https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners

  ### Changelog notice

  None

  ### Checklists

  #### All Submissions:

  * [x] I've signed all my commits
  * [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
  * [x] I ran `just p` before pushing

ACKs for top commit:
  ValuedMammal:
    ACK 3f90422
  luisschwab:
    ACK 3f90422

Tree-SHA512: 9c20b41473e54fc3241187d18c4f7308903a32f99785a32e63c089457357286a80227654754b6130fc66f7312584c6c60f4878d761c06557be3762a9355bd1d3

Author: notmandatory

.github/CODEOWNERS

@@ -1 +1 @@
-/wallet/ @ValuedMammal
+* @ValuedMammal @oleonardolima