Update toml requirement from 0.8 to 0.9

Updates the requirements on [toml](https://github.com/toml-rs/toml) to permit the latest version.
- [Commits](toml-rs/toml@toml-v0.8.0...toml-v0.9.4)

---
updated-dependencies:
- dependency-name: toml
  dependency-version: 0.9.4
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Cargo.toml

@@ -16,7 +16,7 @@ serde = "^1.0"
 serde_yaml = { version = "0.9", optional = true }
 thiserror = "2.0"
 basic-toml = { version = "0.1.10", optional = true }
-toml = { version = "0.8", optional = true }
+toml = { version = "0.9", optional = true }
 
 [features]
 default = ["toml_conf"]