chore(deps): bump openpyxl from 3.1.4 to 3.1.5 (#520)

Bumps [openpyxl](https://openpyxl.readthedocs.io) from 3.1.4 to 3.1.5.

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

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