Don't cancel each other's job in test matrix. (#240)

Co-authored-by: Stefan Majer <[email protected]>

Author: Gerrit91

.github/workflows/integration.yaml

@@ -89,6 +89,7 @@ jobs:
       - build-mini-lab-vms-image
       - build-mini-lab-sonic-image
 
+    continue-on-error: true
     strategy:
       matrix:
         flavors: