Missing required file: package.json when using path config

### TL;DR

The package I want to create a release for is in a subfolder `aws`.
I configured the path option in the release-please action, but I get an error.

I take it the configuration as explained here: https://github.com/google-github-actions/release-please-action?tab=readme-ov-file#action-inputs, still works for v4.

### Expected behavior

No errors

### Observed behavior

release-please failed: node (my-repo-name): Missing required file: package.json

### Action YAML

```yaml
steps:
- id: release
uses: google-github-actions/release-please-action@v4
with:
release-type: node
path: ./aws
```
```

### Log output

_No response_

### Additional information

_No response_

Start with the release-please action inputs documentation linked in the issue and reproduce the provided v4 configuration with a package in the aws subfolder. Trace how the path and release-type values are handled, then verify that the same configuration no longer reports a missing package.json.

Written by the indexing model from the issue text.