chore(deps): update rust crate toml_edit to 0.21.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
toml_edit	dependencies	minor	0.20.7 -> 0.21.0

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Release Notes

toml-rs/toml (toml_edit)

### [`v0.21.0`](https://togithub.com/toml-rs/toml/compare/v0.20.7...v0.21.0) [Compare Source](https://togithub.com/toml-rs/toml/compare/v0.20.7...v0.21.0)

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Configuration

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