Merge #1165: Update bitcoinconsensus dependency

7f55477 Update bitcoinconsensus dependency (Tobin C. Harding)

Pull request description:

  We recently released a couple of new versions of
  `rust-bitcoinconsensus`, the first was mainly to move to git subtree,
  included in this release was a bump of the patch version of bitcoin
  core. The next release updated bitcoin core major version to 0.20.2

  Update our bitcoinconsensus dependency to `0.20.2-0.5.0`.

ACKs for top commit:
  apoelstra:
    ACK 7f55477
  sanket1729:
    utACK 7f55477

Tree-SHA512: e30857846e6dcf237e6c87ea5cce81f091104772ce3293c8b7193f253aab3176627466ca41fc3764c949edb4f6c4ae5dc00968d71a4492e19a8a1a1e9dba7013

Cargo.toml

@@ -39,7 +39,7 @@ secp256k1 = { version = "0.24.0", default-features = false, features = ["bitcoin
 core2 = { version = "0.3.0", optional = true, default-features = false }
 
 base64 = { version = "0.13.0", optional = true }
-bitcoinconsensus = { version = "0.19.0-3", optional = true }
+bitcoinconsensus = { version = "0.20.2-0.5.0", optional = true }
 # Do NOT use this as a feature! Use the `serde` feature instead.
 actual-serde = { package = "serde", version = "1", default-features = false, features = [ "derive", "alloc" ], optional = true }
 hashbrown = { version = "0.8", optional = true }