Bump bitcoin from 0.31.1 to 0.31.2 (#1027)

Bumps [bitcoin](https://github.com/rust-bitcoin/rust-bitcoin) from 0.31.1 to 0.31.2.
- [Release notes](https://github.com/rust-bitcoin/rust-bitcoin/releases)
- [Commits](rust-bitcoin/rust-bitcoin@bitcoin-0.31.1...bitcoin-0.31.2)

---
updated-dependencies:
- dependency-name: bitcoin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Cargo.toml

@@ -22,7 +22,7 @@ spec = "internal/config_specification.toml"
 
 [dependencies]
 anyhow = "1.0"
-bitcoin = { version = "0.31.1", features = ["serde", "rand-std"] }
+bitcoin = { version = "0.31.2", features = ["serde", "rand-std"] }
 bitcoin_slices = { version = "0.7", features = ["bitcoin", "sha2"] }
 bitcoincore-rpc = { version = "0.18" }
 configure_me = "0.4"