Bump k256 from 0.10.2 to 0.10.4 (#11249)

Bumps [k256](https://github.com/RustCrypto/elliptic-curves) from 0.10.2 to 0.10.4.
- [Release notes](https://github.com/RustCrypto/elliptic-curves/releases)
- [Commits](https://github.com/RustCrypto/elliptic-curves/compare/k256/v0.10.2...k256/v0.10.4)

---
updated-dependencies:
- dependency-name: k256
  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>

substrate/Cargo.lock

@@ -3534,9 +3534,9 @@ dependencies = [
 
 [[package]]
 name = "k256"
-version = "0.10.2"
+version = "0.10.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1cc5937366afd3b38071f400d1ce5bd8b1d40b5083cc14e6f8dbcc4032a7f5bb"
+checksum = "19c3a5e0a0b8450278feda242592512e09f61c72e018b8cd5c859482802daf2d"
 dependencies = [
  "cfg-if 1.0.0",
  "ecdsa",

substrate/frame/support/Cargo.toml

@@ -35,7 +35,7 @@ impl-trait-for-tuples = "0.2.2"
 smallvec = "1.8.0"
 log = { version = "0.4.16", default-features = false }
 sp-core-hashing-proc-macro = { version = "5.0.0", path = "../../primitives/core/hashing/proc-macro" }
-k256 = { version = "0.10.2", default-features = false, features = ["ecdsa"] }
+k256 = { version = "0.10.4", default-features = false, features = ["ecdsa"] }
 
 [dev-dependencies]
 assert_matches = "1.3.0"