chore(deps): update dependency typescript to v4.8.4

Author: renovate[bot]

mock-server/package-lock.json

@@ -51,7 +51,7 @@
     "jest": "27.5.1",
     "ts-jest": "27.1.5",
     "tslint": "6.1.3",
-    "typescript": "4.0.5",
+    "typescript": "4.8.4",
     "wait-on": "6.0.1"
   }
 }

mock-server/package.json

@@ -88,6 +88,6 @@
     "gts": "3.1.1",
     "mocha": "9.2.2",
     "openapi-cop-mock-server": "file:./mock-server",
-    "typescript": "4.0.5"
+    "typescript": "4.8.4"
   }
 }