Bump @iobroker/adapter-core from 2.6.8 to 2.6.9

Bumps [@iobroker/adapter-core](https://github.com/ioBroker/adapter-core) from 2.6.8 to 2.6.9.
- [Release notes](https://github.com/ioBroker/adapter-core/releases)
- [Commits](ioBroker/adapter-core@v2.6.8...v2.6.9)

---
updated-dependencies:
- dependency-name: "@iobroker/adapter-core"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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