Merge bitcoindevkit/bdk#737: Update electrum-client to 0.11.0

Merge bitcoindevkit/bdk#737: Update electrum-client to 0.11.0

d7163c3a976daf1b6a38884d77546a745805bd3c Update electrum-client to 0.11.0 (Alekos Filini)

Pull request description:

  ### Description

  Update electrum-client to 0.11.0

  ### Changelog notice

  - Updated `electrum-client` to `0.11.0`

  ### 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

  #### New Features:

  * [ ] I've added tests for the new feature
  * [ ] I've added docs for the new feature
  * [x] I've updated `CHANGELOG.md`

ACKs for top commit:
  danielabrozzoni:
    utACK d7163c3a976daf1b6a38884d77546a745805bd3c

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