add TypeScript to peerDependencies

Author: uhyo

package-template/package.json

@@ -8,5 +8,8 @@
     "TypeScript"
   ],
   "author": "uhyo <[email protected]>",
-  "license": "Apache-2.0"
+  "license": "Apache-2.0",
+  "peerDependencies": {
+    "typescript": ">=4.1"
+  }
 }