Update dependency immutability-helper to v3.1.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
immutability-helper	dependencies	minor	3.0.1 -> 3.1.1

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Release Notes

kolodny/immutability-helper

### [`v3.1.1`](https://togithub.com/kolodny/immutability-helper/releases/v3.1.1) [Compare Source](https://togithub.com/kolodny/immutability-helper/compare/v3.0.2...v3.1.1) - Remove all dependancies - Support complex specs inside of Maps in TypeScript (Thanks [@​colekurk](https://togithub.com/colekurk) !) ### [`v3.0.2`](https://togithub.com/kolodny/immutability-helper/releases/v3.0.2) [Compare Source](https://togithub.com/kolodny/immutability-helper/compare/v3.0.1...v3.0.2) Fixed issue with Readonly values pushed onto a readonly array. See [#​154](https://togithub.com/kolodny/immutability-helper/issues/154) for more details

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