Merge bitcoindevkit/bdk#1751: deps(electrum): bump `electrum-client` to 0.22.0

2be3b022b995d5af1a0e0fea958cb973d32085b0 deps(electrum): bump `electrum-client` to 0.22.0 (Wei Chen)

Pull request description:

  Partially resolves #1742.

  ### Description

  Updates the `electrum-client` dependency to 0.22.0 for `bdk_electrum`.

  ### Notes to the reviewers

  ### Changelog notice

  * Updated `electrum-client` dependency to 0.22.0.

  ### 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

ACKs for top commit:
  notmandatory:
    ACK 2be3b022b995d5af1a0e0fea958cb973d32085b0

Tree-SHA512: 72a893b3939f217823382be815a38e13bef0201ac4b320a6de9c92ff36f2d013f95701e01afba95a5e4fcd874d8f3b0f2c432de608a6d41746b03dc4d03cb6e8