build(deps): bump elliptic-curve from 0.10.3 to 0.10.4 (#379)

Bumps [elliptic-curve](https://github.com/RustCrypto/traits) from 0.10.3 to 0.10.4.
- [Release notes](https://github.com/RustCrypto/traits/releases)
- [Commits](RustCrypto/traits@elliptic-curve-v0.10.3...elliptic-curve-v0.10.4)

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

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

Cargo.lock

@@ -18,7 +18,7 @@ keywords = ["bitcoin", "crypto", "ecc", "ethereum", "secp256k1"]
 
 [dependencies]
 cfg-if = "1.0"
-elliptic-curve = { version = "0.10.2", default-features = false, features = ["hazmat"] }
+elliptic-curve = { version = "0.10.4", default-features = false, features = ["hazmat"] }
 
 # optional dependencies
 hex-literal = { version = "0.3", optional = true }