dynamic inventory 'vars' -> 'hostvars'

gso/workflows/router/update_ibgp_mesh.py

@@ -60,7 +60,7 @@ def _generate_pe_inventory(pe_router_list: list[Router]) -> dict[str, Any]:
     """Generate an Ansible-compatible inventory for executing playbooks. Contains all active PE routers."""
     return {
         "_meta": {
-            "vars": {
+            "hostvars": {
                 router.router.router_fqdn: {
                     "lo4": str(router.router.router_lo_ipv4_address),
                     "lo6": str(router.router.router_lo_ipv6_address),