fix(deps): update rust crate serde_repr to v0.1.19

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
serde_repr	dependencies	patch	0.1.16 -> 0.1.19

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Release Notes

dtolnay/serde-repr (serde_repr)

### [`v0.1.19`](https://togithub.com/dtolnay/serde-repr/releases/tag/0.1.19) [Compare Source](https://togithub.com/dtolnay/serde-repr/compare/0.1.18...0.1.19) - Suppress warning when deriving on deprecated type ([#​29](https://togithub.com/dtolnay/serde-repr/issues/29)) ### [`v0.1.18`](https://togithub.com/dtolnay/serde-repr/releases/tag/0.1.18) [Compare Source](https://togithub.com/dtolnay/serde-repr/compare/0.1.17...0.1.18) - Update proc-macro2 to fix caching issue when using a rustc-wrapper such as sccache ### [`v0.1.17`](https://togithub.com/dtolnay/serde-repr/releases/tag/0.1.17) [Compare Source](https://togithub.com/dtolnay/serde-repr/compare/0.1.16...0.1.17) - Improve macro error messages ([#​24](https://togithub.com/dtolnay/serde-repr/issues/24), [#​27](https://togithub.com/dtolnay/serde-repr/issues/27)) - Support crates containing a `core` module that is something different from libcore ([#​14](https://togithub.com/dtolnay/serde-repr/issues/14))

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