Merge bitcoindevkit/bdk#1951: Release `bdk_chain` v0.22.0

4c34331289beaf7b8968ca069b3bfa596523ea06 chore: Update changelogs (valued mammal)
ba4e7fdfc6fa70f8690041f4223d7ac2ec8dcf69 chore: bump bdk_chain to 0.22.0 (valued mammal)

Pull request description:

  chore: bump bdk_chain to 0.22.0

  - bdk_core 0.5.0
  - bitcoind_rpc 0.19.0
  - electrum 0.22.0
  - esplora 0.21.0
  - file_store 0.20.0
  - testenv 0.12.0

  fixes #1945

ACKs for top commit:
  LagginTimes:
    ACK 4c34331289beaf7b8968ca069b3bfa596523ea06

Tree-SHA512: ba9a4fd160373e12bc88db3474a48724ed83f88d35f562d26d5e59005320d585d20ffe1d115295f9bd6caa0d1996010e0e6158f17c47508d177dbe7b499ec8a2