ci: test snap canary against edge channel

Signed-off-by: Kris Hicks <khicks@nvidia.com>

Author: krishicks

.github/workflows/release-canary.yml

@@ -147,7 +147,7 @@ jobs:
 
   ubuntu-snap:
     name: Ubuntu Snap
-    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    if: ${{ github.event_name == 'workflow_dispatch' || github.event.workflow_run.conclusion == 'success' }}
     runs-on: ubuntu-latest
     timeout-minutes: 20
     steps:
@@ -165,19 +165,10 @@ jobs:
           set -euo pipefail
           sudo snap install docker
 
-      - name: Download snap from release-dev artifacts
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
-        with:
-          github-token: ${{ github.token }}
-          run-id: ${{ github.event.workflow_run.id }}
-          pattern: snap-linux-amd64
-          path: release/
-          merge-multiple: true
-
-      - name: Install snap (dangerous — from release, not store)
+      - name: Install OpenShell edge snap
         run: |
           set -euo pipefail
-          sudo snap install ./release/*.snap --dangerous
+          sudo snap install openshell --edge
 
       - name: Connect interfaces
         run: |