fix: always pipe stderr (#412)

* fix: always pipe stderr

* fix: typo

* chore: add changeset

Author: Esemesek

.changeset/selfish-pens-greet.md

@@ -0,0 +1,5 @@
+---
+'@rnef/tools': patch
+---
+
+Collect stderr stream for verbose mode in order to catch and report correct errors in the CLI.

packages/tools/src/lib/spawn.ts

@@ -7,8 +7,12 @@ export function spawn(
   args?: readonly string[],
   options?: Options
 ): Subprocess {
+  const defaultStream = logger.isVerbose() ? 'inherit' : 'pipe';
   const defaultOptions: Options = {
-    stdio: logger.isVerbose() ? 'inherit' : 'pipe',
+    stdin: defaultStream,
+    stdout: defaultStream,
+    // Always 'pipe' stderr to handle errors properly down the line
+    stderr: 'pipe',
   };
   logger.debug(`Running: ${file}`, ...(args ?? []));
   const childProcess = nanoSpawn(file, args, { ...defaultOptions, ...options });