dep: downgrade typescript to 4.0.3

https://github.com/microsoft/TypeScript/issues/41359

package.json

@@ -35,7 +35,7 @@
         "ora": "^5.1.0",
         "semver": "^7.3.2",
         "ts-jest": "^26.4.4",
-        "typescript": "^4.0.5"
+        "typescript": "4.0.3"
     },
     "dependencies": {
         "fs-extra": "^9.0.1",