modify app slug for unstable channel

Author: diamonwiggins

.github/workflows/mlflow-ci.yml

@@ -267,7 +267,7 @@ jobs:
         with:
           kubeconfig: ${{ steps.create-cluster.outputs.cluster-kubeconfig }}
           kots-version: latest
-          app-slug: ${{ env.APP_SLUG }}
+          app-slug: ${{ env.APP_SLUG }}/unstable
           app-version-label: ${{ steps.chart-version.outputs.chart_version }}
           license-file: ${{ steps.download-license.outputs.license }}
           namespace: default