Pass refspec and version on the CLI

Looks like playbooks vars (as included by the vars_files item in
localdev.yaml) take precedence over inventory vars, so our passing of
the catalog git refspec and version via the inventory file was always
doomed to failure. Pass them as -e options on the CLI instead.

.github/workflows/localdev.yaml

@@ -41,9 +41,12 @@ jobs:
           playbook: localdev.yaml
           inventory: |
             [localdev]
-            ${{ steps.lxc.outputs.ip }} ansible_user=root ci_env=development ci_log_threshold=4 catalog_git_refspec=${{ inputs.catalog_git_refspec }} catalog_git_version=${{ inputs.catalog_git_version }}
+            ${{ steps.lxc.outputs.ip }} ansible_user=root ci_env=development ci_log_threshold=4
           options:
             --verbose
+            # Set these on the CLI options to make sure they take precedence
+            -e "catalog_git_refspec=${{ inputs.catalog_git_refspec }}"
+            -e "catalog_git_version=${{ inputs.catalog_git_version }}"
 
       - name: Ensure resulting website health
         # This relies on the LXC container creation step having added an