chore(deps): update dependency typescript to v3.4.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
typescript	devDependencies	minor	3.3.4000 -> 3.4.1	homepage, source

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Release Notes

Microsoft/TypeScript

### [`v3.4.1`](https://togithub.com/Microsoft/TypeScript/releases/v3.4.1) [Compare Source](https://togithub.com/Microsoft/TypeScript/compare/v3.3.4000...v3.4.1) For release notes, check out the [release announcement](https://devblogs.microsoft.com/typescript/announcing-typescript-3-4/). For the complete list of fixed issues, check out the - [fixed issues query for Typescript v3.4 RC](https://togithub.com/Microsoft/TypeScript/issues?utf8=%E2%9C%93&q=is%3Aissue+milestone%3A%22TypeScript+3.4%22+is%3Aclosed+). - [fixed issues query for Typescript v3.4.1](https://togithub.com/Microsoft/TypeScript/issues?utf8=%E2%9C%93&q=is%3Aissue+milestone%3A%22TypeScript+3.4.1%22+is%3Aclosed+). Downloads are available on: - [npm](https://www.npmjs.com/package/typescript) - [Visual Studio 2017](https://marketplace.visualstudio.com/items?itemName=TypeScriptTeam.typescript-341-vs2017) ([Select new version in project options](https://togithub.com/Microsoft/TypeScript/wiki/Updating-TypeScript-in-Visual-Studio-2017)) - [NuGet package](https://www.nuget.org/packages/Microsoft.TypeScript.MSBuild) Special thanks to all of our contributors this release: - [@​AnyhowStep](https://togithub.com/AnyhowStep) - Alan Pierce - Alexander Tarasyuk - Anders Hejlsberg - Andy Hanson - Benedikt Meurer - Benjamin Lichtman - Collins Abitekaniza - Daniel Krom - Daniel Rosenwasser - [@​fullheightcoding](https://togithub.com/fullheightcoding) - Gabriela Araujo Britto - [@​ispedals](https://togithub.com/ispedals) - Jack Williams - Jesse Trinity - Jordi Oliveras Rovira - Joseph Wunderlich - K. Preißer - Kagami Sascha Rosylight - Klaus Meinhardt - Masahiro Wakame - Matt McCutchen - Matthew Aynalem - Mine Starks - Nathan Shively-Sanders - Ron Buckton - Ryan Cavanaugh - Sheetal Nandi - Titian Cernicova-Dragomir - [@​tomholub](https://togithub.com/tomholub) - Wenlu Wang - Wesley Wigham

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