replace yarn with npm

Author: pdziewa

package.json

@@ -15,7 +15,7 @@
     "test": "jest",
     "test:watch": "jest --watchAll",
     "prepare": "husky install",
-    "prepublishOnly": "yarn lint && yarn test"
+    "prepublishOnly": "npm run lint && npm run test"
   },
   "dependencies": {
     "axios": "^1.6.1",