Bump aiida-core from 80117f8 to 6ee278c (#160)

Bumps [aiida-core](https://github.com/aiidateam/aiida-core) from `80117f8` to `6ee278c`.
- [Release notes](https://github.com/aiidateam/aiida-core/releases)
- [Commits](aiidateam/aiida-core@80117f8...6ee278c)

---
updated-dependencies:
- dependency-name: aiida-core
  dependency-type: direct:production
...

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