test: fix binary file permissions

Author: tscpp

e2e/utils/binary.ts

@@ -1,4 +1,9 @@
 import { resolve } from "node:path";
 import packageJson from "../../package.json";
+import { $ } from "execa";
 
 export const CONVER = resolve(packageJson.bin.conver);
+
+if (process.platform !== "win32") {
+  await $`chmod +x ${CONVER}`;
+}