chore(deps-dev): bump streamx from 2.20.2 to 2.21.1

Bumps [streamx](https://github.com/mafintosh/streamx) from 2.20.2 to 2.21.1.
- [Commits](mafintosh/streamx@v2.20.2...v2.21.1)

---
updated-dependencies:
- dependency-name: streamx
  dependency-type: indirect
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]