fix(node): errno property when command missing (#22691)

Fixes #22604

`remix dev` with Node adapter works:
```
$ ~/gh/littledivy/deno/target/debug/deno task dev
Task dev remix dev --manual

 💿  remix dev

 info  building...
 info  built (619ms)
[remix-serve] http://localhost:3000 (http://192.168.1.24:3000)

GET / 200 - - 3.090 ms
```

ext/node/polyfills/internal/child_process.ts

@@ -275,7 +275,11 @@ export class ChildProcess extends EventEmitter {
         });
       })();
     } catch (err) {
-      this.#_handleError(err);
+      let e = err;
+      if (e instanceof Deno.errors.NotFound) {
+        e = _createSpawnSyncError("ENOENT", command, args);
+      }
+      this.#_handleError(e);
     }
   }
 

tests/unit_node/child_process_test.ts

@@ -771,3 +771,15 @@ Deno.test(async function execFileWithUndefinedTimeout() {
   );
   await promise;
 });
+
+Deno.test(async function spawnCommandNotFoundErrno() {
+  const { promise, resolve } = Promise.withResolvers<void>();
+  const cp = CP.spawn("no-such-command");
+  cp.on("error", (err) => {
+    const errno = Deno.build.os === "windows" ? -4058 : -2;
+    // @ts-ignore: errno missing from typings
+    assertEquals(err.errno, errno);
+    resolve();
+  });
+  await promise;
+});