fix(deps): update rust crate rust_decimal to 1.30

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
rust_decimal	dependencies	minor	1.29 -> 1.30

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Release Notes

paupino/rust-decimal

### [`v1.30.0`](https://togithub.com/paupino/rust-decimal/blob/HEAD/CHANGELOG.md#​1300) As the minor releases for Rust Decimal are getting smaller, I'll be looking at formally starting version 2 of the Decimal library. This will be unstable as we find experiment with a new API and address some of the constraints the current implementation of the library has (e.g. revised error types for better const support). ##### Added - Add `proptest` feature support for `Decimal` ([#​582](https://togithub.com/paupino/rust-decimal/pull/582)). - Implement an `is_integer` function for an efficient means to check whether a `Decimal` is an integer with no fractional portion. ([#​591](https://togithub.com/paupino/rust-decimal/pull/591)). ##### Changed - Improved GitHub Actions Workflow ([#​592](https://togithub.com/paupino/rust-decimal/pull/592)). ##### Credit Thank you to [@​cardoe](https://togithub.com/cardoe/) for your contribution! ### [`v1.29.1`](https://togithub.com/paupino/rust-decimal/blob/HEAD/CHANGELOG.md#​1291) [Compare Source](https://togithub.com/paupino/rust-decimal/compare/1.29.0...1.29.1) ##### Fixed - Fixes an issue with `checked_cos` and `checked_sin` where `QUARTER_PI` would send the calculation into an infinite loop. (#[585](https://togithub.com/paupino/rust-decimal/pull/585))

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