Update Rust crate toml to 0.7.1 (#1755)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [toml](https://github.com/toml-rs/toml) | dependencies | minor | `0.5.11` -> `0.7.1` |

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### Release Notes

<details>
<summary>toml-rs/toml</summary>

### [`v0.7.1`](toml-rs/toml@toml-v0.7.0...toml-v0.7.1)

[Compare Source](toml-rs/toml@toml-v0.7.0...toml-v0.7.1)

### [`v0.7.0`](toml-rs/toml@toml-v0.6.0...toml-v0.7.0)

[Compare Source](toml-rs/toml@toml-v0.6.0...toml-v0.7.0)

### [`v0.6.0`](toml-rs/toml@toml-v0.5.11...toml-v0.6.0)

[Compare Source](toml-rs/toml@toml-v0.5.11...toml-v0.6.0)

</details>

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Reviewed-on: https://codeberg.org/Calciumdibromid/CaBr2/pulls/1755
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crates/config/Cargo.toml

@@ -18,7 +18,7 @@ serde = { version = "1.0.152", features = ["derive"] }
 serde_json = "1.0.91"
 thiserror = "1.0.38"
 tokio = { version = "1.24.2", features = ["fs", "io-util"] }
-toml = { version = "0.5.11", features = ["preserve_order"] }
+toml = { version = "0.7.1", features = ["preserve_order"] }
 
 types = { path = "../types/" }