Update no-unnecessary-polyfills.mjs

Author: Mesteery

test/no-unnecessary-polyfills.mjs

@@ -8,6 +8,10 @@ test({
 			code: 'require("object-assign")',
 			options: [{nodeVersion: '0.1.0'}],
 		},
+		{
+			code: 'require("this-is-not-a-polyfill")',
+			options: [{nodeVersion: '0.1.0'}],
+		},
 		{
 			code: 'import assign from "object-assign"',
 			options: [{nodeVersion: '0.1.0'}],