fix(deps): update rust crate kubewarden-policy-sdk to 0.4.2

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
kubewarden-policy-sdk	dependencies	patch	0.4.1 -> 0.4.2

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Release Notes

kubewarden/policy-sdk-rust

### [`v0.4.2`](https://togithub.com/kubewarden/policy-sdk-rust/compare/v0.4.1...v0.4.2) [Compare Source](https://togithub.com/kubewarden/policy-sdk-rust/compare/v0.4.1...v0.4.2)

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