deps: bump typescript from 3.9.5 to 3.9.6 (#374)

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.5 to 3.9.6.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](https://github.com/Microsoft/TypeScript/commits)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -77,6 +77,6 @@
     "prettier": "2.0.5",
     "standard-version": "^8.0.0",
     "ts-jest": "^25.5.1",
-    "typescript": "^3.9.5"
+    "typescript": "^3.9.6"
   }
 }