Remove unnecessary which dependency

Author: hkdobrev

package-lock.json

@@ -16,7 +16,6 @@
     "cosmiconfig": "^9.0.0",
     "execa": "^9.0.0",
     "micromatch": "^4.0.7",
-    "npm-which": "^3.0.1",
     "string-argv": "^0.3.2"
   },
   "devDependencies": {