chore: revert husky to 4.x

Author: tangjinzhou

package.json

@@ -131,7 +131,7 @@
     "gulp-strip-code": "^0.1.4",
     "gulp-typescript": "^6.0.0-alpha.1",
     "html-webpack-plugin": "^3.2.0",
-    "husky": "^5.1.3",
+    "husky": "^4.0.0",
     "ignore-emit-webpack-plugin": "^2.0.6",
     "istanbul-instrumenter-loader": "^3.0.0",
     "jest": "^26.0.0",