Merge pull request #7093 from edixos/master

slack config: add Nauticus channel

Author: k8s-ci-robot

communication/slack-config/channels.yaml

@@ -330,6 +330,7 @@ channels:
   - name: multi-platform
   - name: mysql-operator
   - name: nais
+  - name: nauticus
   - name: navigator
     archived: true
   - name: ncw-staff