Bump typescript from 3.8.3 to 3.9.5 (#53)

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.8.3 to 3.9.5.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](https://github.com/Microsoft/TypeScript/compare/v3.8.3...v3.9.5)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

     "@types/debug": "4.1.5",
     "@types/express": "4.17.6",
     "@types/node": "13.9.8",
-    "typescript": "3.8.3"
+    "typescript": "3.9.5"
   },
   "eslintConfig": {
     "extends": [

yarn.lock

     media-typer "0.3.0"
     mime-types "~2.1.24"
 
-typescript@3.8.3:
-  version "3.8.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.8.3.tgz#409eb8544ea0335711205869ec458ab109ee1061"
-  integrity sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w==
+typescript@3.9.5:
+  version "3.9.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.5.tgz#586f0dba300cde8be52dd1ac4f7e1009c1b13f36"
+  integrity sha512-hSAifV3k+i6lEoCJ2k6R2Z/rp/H3+8sdmcn5NrS3/3kE7+RyZXm9aqvxWqjEXHAd8b0pShatpcdMTvEdvAJltQ==
 
 unpipe@1.0.0, unpipe@~1.0.0:
   version "1.0.0"