Update Rust crate toml to v0.8.16

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
toml	build-dependencies	patch	0.8.15 -> 0.8.16

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Release Notes

toml-rs/toml (toml)

### [`v0.8.16`](https://togithub.com/toml-rs/toml/compare/toml-v0.8.15...toml-v0.8.16) [Compare Source](https://togithub.com/toml-rs/toml/compare/toml-v0.8.15...toml-v0.8.16)

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Configuration

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