chore(deps): bump nkeys from 0.2.0 to 0.3.0 (vectordotdev#17421)

Bumps [nkeys](https://github.com/wasmcloud/nkeys) from 0.2.0 to 0.3.0.
- [Release notes](https://github.com/wasmcloud/nkeys/releases)
- [Commits](wasmCloud/nkeys@v0.2.0...v0.3.0)

---
updated-dependencies:
- dependency-name: nkeys
  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.toml

@@ -277,7 +277,7 @@ maxminddb = { version = "0.23.0", default-features = false, optional = true }
 md-5 = { version = "0.10", default-features = false, optional = true }
 mongodb = { version = "2.5.0", default-features = false, features = ["tokio-runtime"], optional = true }
 nats = { version = "0.24.0", default-features = false, optional = true }
-nkeys = { version = "0.2.0", default-features = false, optional = true }
+nkeys = { version = "0.3.0", default-features = false, optional = true }
 nom = { version = "7.1.3", default-features = false, optional = true }
 notify = { version = "5.1.0", default-features = false, features = ["macos_fsevent"] }
 once_cell = { version = "1.17", default-features = false }