Bump harmony-py from 0.4.14 to 0.4.15

Bumps [harmony-py](https://github.com/nasa/harmony-py) from 0.4.14 to 0.4.15.
- [Release notes](https://github.com/nasa/harmony-py/releases)
- [Commits](nasa/harmony-py@v0.4.14...v0.4.15)

---
updated-dependencies:
- dependency-name: harmony-py
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>