08ed922ec9873eb363a4a95880a08a2e23658209 Use refs instead of clone in PSBT finalizer prevouts fn (Dr Maxim Orlovsky)
b291d27ba424a9b0de45a0201c04940abf3c15e8 Update to bitcoin 0.27.0-rc.2 (Dr Maxim Orlovsky)

Pull request description:

  This is a draft API adopting new version of rust-bitcoin 0.28.0-rc.2

ACKs for top commit:
  sanket1729:
    tACK 08ed922ec9873eb363a4a95880a08a2e23658209. The commit message still says 0.27, but I can live with it

Tree-SHA512: 04e6fb56236add48ec6f0352485b97b00f0fc12f35979f04212362f4468087f84b7e83fbdb759973cd86257655e66e85696e0289ea6121552c71442658bea793