Bump openpyxl from 3.0.7 to 3.0.9 (#147)

Bumps [openpyxl](https://openpyxl.readthedocs.io) from 3.0.7 to 3.0.9.

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>