chore(deps-dev): bump typescript from 2.9.2 to 3.5.1

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 2.9.2 to 3.5.1.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v2.9.2...v3.5.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -69,7 +69,7 @@
     "semantic-release": "^15.13.3",
     "ts-node": "^8.0.3",
     "tslint": "^5.12.1",
-    "typescript": "^2.8.3"
+    "typescript": "^3.5.1"
   },
   "husky": {
     "hooks": {