chore(deps): update bitcoin-io requirement from 0.3.0 to 0.5.0

Updates the requirements on [bitcoin-io](https://github.com/rust-bitcoin/rust-bitcoin) to permit the latest version.
- [Release notes](https://github.com/rust-bitcoin/rust-bitcoin/releases)
- [Changelog](https://github.com/rust-bitcoin/rust-bitcoin/blob/master/CHANGELOG.md)
- [Commits](rust-bitcoin/rust-bitcoin@bitcoin-io-0.3.0...bitcoin-io-0.5.0)

---
updated-dependencies:
- dependency-name: bitcoin-io
  dependency-version: 0.5.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.toml

@@ -16,7 +16,7 @@ bitcoin_hashes = { version = "0.20", default-features = false }
 hex-conservative = { version = "1.0.0", default-features = false }
 serde = { version = "1.0", features = ["derive"], optional = true }
 hashbrown = "0.16.1"
-bitcoin-io = { version = "0.3.0", default-features = false, features = ["alloc"] }
+bitcoin-io = { version = "0.5.0", default-features = false, features = ["alloc"] }
 
 [dev-dependencies]
 serde = { version = "1.0", features = ["derive"] }