Bump subxt-metadata from 0.38.0 to 0.38.1

Bumps [subxt-metadata](https://github.com/paritytech/subxt) from 0.38.0 to 0.38.1.
- [Release notes](https://github.com/paritytech/subxt/releases)
- [Changelog](https://github.com/paritytech/subxt/blob/v0.38.1/CHANGELOG.md)
- [Commits](paritytech/subxt@v0.38.0...v0.38.1)

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

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

Cargo.toml

@@ -68,7 +68,7 @@ sha2 = { version = "0.10" }
 sha3 = { version = "0.10" }
 static_assertions = { version = "1.1" }
 subxt = { version = "0.38.0" }
-subxt-metadata = { version = "0.38.0" }
+subxt-metadata = { version = "0.38.1" }
 subxt-signer = { version = "0.38.0" }
 syn = { version = "2" }
 synstructure = { version = "0.13.1" }