Merge #847: Update electrsd to version 0.22

147a4ed Update electrsd to version 0.22 (Steve Myers)

Pull request description:

  ### Description

  Update `electrsd` dev-dependency to version `0.22`.

  ### Notes to the reviewers

  We're able to do this now that esplora was updated in #830 and our MSRV was bumped to `1.57.0` in #842.

  ### Changelog

  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)

ACKs for top commit:
  rajarshimaitra:
    ACK 147a4ed

Tree-SHA512: 20e0aebb02d786a4d426a2d2e66b78225a803eee2c2f6092b0cf8f18e6fe91e37ef7a74e109e3ad4d734af8de4dc71598f7e80f50d40187442dad323000c6090

Cargo.toml

@@ -106,7 +106,7 @@ dev-getrandom-wasm = ["getrandom/js"]
 [dev-dependencies]
 lazy_static = "1.4"
 env_logger = "0.7"
-electrsd = "0.21"
+electrsd = "0.22"
 # Move back to importing from rust-bitcoin once https://github.com/rust-bitcoin/rust-bitcoin/pull/1342 is released
 base64 = "^0.13"
 assert_matches = "1.5.0"