fix: enable strict mode

Author: armano2

@packages/utils/pkg-check.js

@@ -60,7 +60,8 @@ const cli = yargs
 	.usage('Check if a package creates valid tarballs')
 	.example('$0', '')
 	.help()
-	.version();
+	.version()
+	.strict();
 
 async function main(flags) {
 	if (!Proxy) {