Fix blocking issue in Resampler.stream

[lox]

Description of changes

Follow-on to #108.

In the process of trying to keep Resampler.process intact (as it's used by the web package), I missed a spot where the implementation for Resampler.stream blocked on building an input buffer which doesn't show up in the tests, but it does in manual testing with very long files.

This fixes the issue.

Checklist

• Added a test to verify that changes work as expected (if one doesn't exist already)
• Ran automated tests successfully
• Viewed manual test site and verified that pages are working
• Bumped versions in relevant packages
• Updated relevant changelogs
• Ran npm run format

[ricky0123]

Thanks a lot @lox