correct test.yml to run slack for assigned contributors

.github/workflows/test.yml

@@ -72,4 +72,4 @@ jobs:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           slack_webhook_url: ${{ secrets.SLACK_ROBOTICS_CI_WEBHOOK }}
           channel: "robotik-ci"
-          name: "NiceGUI"
+          name: "NiceGUI"