Update dependency typescript to v4.0.5

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
typescript (source)	devDependencies	patch	4.0.3 -> 4.0.5

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Release Notes

Microsoft/TypeScript

### [`v4.0.5`](https://togithub.com/Microsoft/TypeScript/releases/v4.0.5) [Compare Source](https://togithub.com/Microsoft/TypeScript/compare/v4.0.3...v4.0.5) For release notes, check out the [release announcement](https://devblogs.microsoft.com/typescript/announcing-typescript-4-0/). For the complete list of fixed issues, check out the - [fixed issues query for TypeScript v4.0.0 (Beta)](https://togithub.com/Microsoft/TypeScript/issues?utf8=%E2%9C%93&q=is%3Aissue+milestone%3A%22TypeScript+4.0.0%22+is%3Aclosed+). - [fixed issues query for TypeScript v4.0.1 (RC)](https://togithub.com/Microsoft/TypeScript/issues?utf8=%E2%9C%93&q=is%3Aissue+milestone%3A%22TypeScript+4.0.1%22+is%3Aclosed+). - [fixed issues query for TypeScript v4.0.2](https://togithub.com/Microsoft/TypeScript/issues?utf8=%E2%9C%93&q=is%3Aissue+milestone%3A%22TypeScript+4.0.2%22+is%3Aclosed+). - [fixed issues query for TypeScript v4.0.3](https://togithub.com/Microsoft/TypeScript/issues?utf8=%E2%9C%93&q=milestone%3A%22TypeScript+4.0.3%22+is%3Aclosed+). - TypeScript 4.0.4 NOT FOUND - [fixed issues query for TypeScript v4.0.5](https://togithub.com/Microsoft/TypeScript/issues?utf8=%E2%9C%93&q=milestone%3A%22TypeScript+4.0.5%22+is%3Aclosed+). Downloads are available on: - [npm](https://www.npmjs.com/package/typescript)

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