fix(ci): match cmlxc ref to version

Author: j4n

.github/workflows/docker-ci.yaml

@@ -225,7 +225,7 @@ jobs:
     uses: chatmail/cmlxc/.github/workflows/lxc-test.yml@j4n/docker-support
     with:
       # TODO: revert to main once cmlxc docker support is merged
-      cmlxc_ref: j4n/docker-support
+      cmlxc_version: j4n/docker-support
       cmlxc_commands: |
         cmlxc init
         cmlxc docker deploy dock0 --source ghcr:${{ needs.build.outputs.image_tag }}