ci: fix dependencies

tests/binary_test/path_probe.ts

@@ -1,5 +1,18 @@
+import { spawnSync } from "node:child_process";
+
 const pathValue = process.env.PATH ?? "";
 
+function commandSucceeds(command: string, args: string[]): boolean {
+  const result = spawnSync(command, args, {
+    encoding: "utf8",
+    env: process.env,
+  });
+  return result.status === 0;
+}
+
 console.log(JSON.stringify({
   hasHostSentinel: pathValue.includes("rules_bun_host_path_sentinel"),
+  canRunBun: commandSucceeds("bun", ["-e", "process.exit(0)"]),
+  canRunBunx: commandSucceeds("bunx", ["--version"]),
+  canRunNode: commandSucceeds("node", ["-e", "process.exit(0)"]),
 }));