chore(deps): update dependency typescript to v3.9.3 (#4155)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package-lock.json

@@ -126,7 +126,7 @@
     "supertest": "4.0.2",
     "test-listen": "1.1.0",
     "ts-jest": "25.5.1",
-    "typescript": "3.9.2",
+    "typescript": "3.9.3",
     "winston": "3.2.1",
     "winston-transport": "4.3.0",
     "ws": "6.2.1"