Bump @iobroker/adapter-core from 2.6.7 to 2.6.8

Bumps [@iobroker/adapter-core](https://github.com/ioBroker/adapter-core) from 2.6.7 to 2.6.8.
- [Release notes](https://github.com/ioBroker/adapter-core/releases)
- [Commits](ioBroker/adapter-core@v2.6.7...v2.6.8)

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

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

package.json

@@ -22,7 +22,7 @@
     "linux"
   ],
   "dependencies": {
-    "@iobroker/adapter-core": "^2.6.7",
+    "@iobroker/adapter-core": "^2.6.8",
     "core-decorators": "^0.20.0"
   },
   "devDependencies": {