build(deps-dev): bump typescript from 3.4.1 to 3.4.2

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.4.1 to 3.4.2.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v3.4.1...v3.4.2)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot-support

yarn.lock

@@ -5357,9 +5357,9 @@ [email protected]:
   integrity sha512-0RNDbSdEokBeEAkgNbxJ+BLwSManFy9TeXz8uW+48j/xhEXv1ePME60olyzw2XzUqUBNAYFeJadIqAgNqIACwg==
 
 typescript@^3.2.4:
-  version "3.4.1"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.4.1.tgz#b6691be11a881ffa9a05765a205cb7383f3b63c6"
-  integrity sha512-3NSMb2VzDQm8oBTLH6Nj55VVtUEpe/rgkIzMir0qVoLyjDZlnMBva0U6vDiV3IH+sl/Yu6oP5QwsAQtHPmDd2Q==
+  version "3.4.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.4.2.tgz#9ed4e6475d906f589200193be056f5913caed481"
+  integrity sha512-Og2Vn6Mk7JAuWA1hQdDQN/Ekm/SchX80VzLhjKN9ETYrIepBFAd8PkOdOTK2nKt0FCkmMZKBJvQ1dV1gIxPu/A==
 
 uglify-js@^2.8.29:
   version "2.8.29"