try bootstrap with add-k8s & without concierge to use classic microk8s snap

Author: carlcsaposs-canonical

concierge.yaml

@@ -4,7 +4,7 @@ juju:
 providers:
   microk8s:
     enable: true
-    bootstrap: true
+    bootstrap: false
     addons:
       - dns
       - hostpath-storage

spread.yaml

@@ -151,6 +151,9 @@ prepare: |
   # Install charmcraft & pipx on lxd-vm backend and install pipx on IS-hosted runners
   ~/go/bin/concierge prepare --trace
 
+  microk8s config | juju add-k8s microk8s --client
+  juju bootstrap microk8s concierge-microk8s
+
   if [[ $SPREAD_SYSTEM == *"s390x"* ]]
   then
     rustup set profile minimal