Merge pull request #7680 from ernado/slack-add-riscv-channel

Add riscv to Slack channels

Author: k8s-ci-robot

communication/slack-config/channels.yaml

@@ -420,6 +420,7 @@ channels:
   - name: random
     archived: true
   - name: reddit-mods
+  - name: riscv
   - name: rktnetes
   - name: ro-users
   - name: rukpak-dev