chore(deps): bump coins-ledger from 0.3.0 to 0.4.0 (#405)

Bumps [coins-ledger](https://github.com/summa-tx/bitcoins-rs) from 0.3.0 to 0.4.0.
- [Release notes](https://github.com/summa-tx/bitcoins-rs/releases)
- [Changelog](https://github.com/summa-tx/bitcoins-rs/blob/main/release.toml)
- [Commits](https://github.com/summa-tx/bitcoins-rs/compare/v0.3.0...coins-ledger-v0.4.0)

---
updated-dependencies:
- dependency-name: coins-ledger
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

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

Cargo.lock

@@ -498,9 +498,9 @@ dependencies = [
 
 [[package]]
 name = "coins-ledger"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca01c92b1270aac4a5552349502daa7c05a466e8ce5a8bbf318775a151e93fb8"
+checksum = "c8173742233f2ff93752a625165947e308172938a1c5e6e85357b7b32d12d287"
 dependencies = [
  "async-trait",
  "blake2b_simd",

ethers-signers/Cargo.toml

@@ -18,7 +18,7 @@ ethers-core = { version = "0.4.0", path = "../ethers-core" }
 thiserror = { version = "1.0.24", default-features = false }
 coins-bip32 = "0.3.0"
 coins-bip39 = "0.3.0"
-coins-ledger = { version = "0.3.0", default-features = false, optional = true }
+coins-ledger = { version = "0.4.0", default-features = false, optional = true }
 hex = { version = "0.4.3", default-features = false, features = ["std"] }
 async-trait = { version = "0.1.50", default-features = false }
 elliptic-curve = { version = "0.10.5", default-features = false }