Update toml requirement from 0.7 to 0.8 (#27)

Updates the requirements on [toml](https://github.com/toml-rs/toml) to permit the latest version.
- [Commits](toml-rs/toml@toml-v0.7.0...toml-v0.8.12)

---
updated-dependencies:
- dependency-name: toml
  dependency-type: direct:production
...

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

tdn/Cargo.toml

@@ -24,7 +24,7 @@ httparse = "1.6"
 mime = "0.3"
 rand_chacha = "0.3"
 serde = { version = "1.0", default-features = false, features = ["alloc", "derive"]}
-toml = "0.7"
+toml = "0.8"
 tokio-tungstenite = "0.20"
 tokio = { version = "1", features = ["full"] }
 tracing = "0.1"