Bump typescript from 3.9.5 to 3.9.6 in /server

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>

server/package-lock.json

@@ -7045,9 +7045,9 @@
       }
     },
     "typescript": {
-      "version": "3.9.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.5.tgz",
-      "integrity": "sha512-hSAifV3k+i6lEoCJ2k6R2Z/rp/H3+8sdmcn5NrS3/3kE7+RyZXm9aqvxWqjEXHAd8b0pShatpcdMTvEdvAJltQ==",
+      "version": "3.9.6",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.6.tgz",
+      "integrity": "sha512-Pspx3oKAPJtjNwE92YS05HQoY7z2SFyOpHo9MqJor3BXAGNaPUs83CuVp9VISFkSjyRfiTpmKuAYGJB7S7hOxw==",
       "dev": true
     },
     "undefsafe": {

server/package.json

@@ -37,7 +37,7 @@
     "supertest": "^4.0.2",
     "ts-jest": "24.3.0",
     "ts-node": "^8.10.2",
-    "typescript": "^3.9.5"
+    "typescript": "^3.9.6"
   },
   "repository": {
     "type": "git",