upgrade typescript

Author: HexaField

tsconfig.json

@@ -3,7 +3,11 @@
     "target": "ESNext",
     "useDefineForClassFields": true,
     "module": "CommonJS",
-    "lib": ["ESNext", "DOM", "DOM.Iterable"],
+    "lib": [
+      "ESNext",
+      "DOM",
+      "DOM.Iterable"
+    ],
     "skipLibCheck": true,
     "moduleResolution": "node",
     "allowImportingTsExtensions": true,
@@ -24,12 +28,15 @@
     "allowSyntheticDefaultImports": true,
     "emitDecoratorMetadata": true,
     "declaration": false,
-    "types": ["@types/node"]
+    "types": [
+      "@types/node"
+    ],
+    "erasableSyntaxOnly": true
   },
   "include": [
     "../../../../../__global.d.ts",
     "../../../../client-core/src/",
     "../../../../server-core/src/",
     "./src"
   ]
-}
+}