Merge bitcoindevkit/bdk#1319: chore: typos

8d93fad778565f44cbcc053c7f51fbc27bebf99a chore: typos (Jose Storopoli)

Pull request description:

  More caught on by Nix CI in #1257.

  ### 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 `cargo fmt` and `cargo clippy` before committing

  #### New Features:

  * [ ] I've added tests for the new feature
  * [ ] I've added docs for the new feature

  #### Bugfixes:

  * [ ] This pull request breaks the existing API
  * [ ] I've added tests to reproduce the issue which are now passing
  * [ ] I'm linking the issue being fixed by this PR

ACKs for top commit:
  evanlinjin:
    ACK 8d93fad778565f44cbcc053c7f51fbc27bebf99a
  notmandatory:
    ACK 8d93fad778565f44cbcc053c7f51fbc27bebf99a

Tree-SHA512: 28e0316d457658266b2af1de76b114f87ce7485e386ddecd805dda1266a4e8645612c0fa6bc921c58daa4886558b32b538cccbb1644c96c3bab638dd7c42ee2b