deps: bump typescript from 3.8.2 to 3.8.3

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.8.2 to 3.8.3.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v3.8.2...v3.8.3)

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

package.json

@@ -68,6 +68,6 @@
     "prettier": "1.19.1",
     "standard-version": "^7.1.0",
     "ts-jest": "^25.2.1",
-    "typescript": "^3.8.2"
+    "typescript": "^3.8.3"
   }
 }