Merge pull request #5553 from nikhita/fix-steering-usergroup

slack-config: rename steering-committee usergroup to steering

Author: k8s-ci-robot

communication/slack-config/usergroups.yaml

@@ -169,7 +169,7 @@ usergroups:
       - microwavables
       - pabloschuhmacher
 
-  - name: steering-committee
+  - name: steering
     long_name: Kubernetes Steering Committee
     description: Members of the Kubernetes Steering Committee
     channels: