debug_files-bundle-jvm-output-is-file.trycmd

```
$ sentry-cli debug-files bundle-jvm --output ./file.txt --debug-id D384DC3B-AB2F-4DC7-903D-2C851E27E094 ./io
? failed
> Found 2 files
> Bundled 2 files for upload
> Bundle ID: [..]-[..]-[..]-[..]-[..]
error: Unable to write source bundle
  caused by: [..]

Add --log-level=[info|debug] or export SENTRY_LOG_LEVEL=[info|debug] to see more output.
Please attach the full debug log to all bug reports.

```