refactor(scenarios): replace hardcoded /home/zuul paths in va-multi.yml

Replace hardcoded /home/zuul/ paths with ansible_user_dir variable in source paths to support different user environments and improve consistency with configurable user variables pattern.

Author: Valkyrie00

scenarios/reproducers/va-multi.yml

@@ -381,15 +381,15 @@ cifmw_networking_definition:
 post_deploy:
   - name: Discover hypervisors for openstack2 namespace
     type: playbook
-    source: "/home/zuul/src/github.com/openstack-k8s-operators/ci-framework/hooks/playbooks/nova_manage_discover_hosts.yml"
+    source: "{{ ansible_user_dir }}/src/github.com/openstack-k8s-operators/ci-framework/hooks/playbooks/nova_manage_discover_hosts.yml"
     extra_vars:
       namespace: openstack2
       _cell_conductors: nova-cell0-conductor-0
 
 pre_admin_setup:
   - name: Prepare OSP networks in openstack2 namespace
     type: playbook
-    source: "/home/zuul/src/github.com/openstack-k8s-operators/ci-framework/playbooks/multi-namespace/ns2_osp_networks.yaml"
+    source: "{{ ansible_user_dir }}/src/github.com/openstack-k8s-operators/ci-framework/playbooks/multi-namespace/ns2_osp_networks.yaml"
     extra_vars:
       cifmw_os_net_setup_namespace: openstack2
       cifmw_os_net_setup_public_cidr: "192.168.133.0/24"
@@ -400,7 +400,7 @@ pre_admin_setup:
 post_tests:
   - name: Run tempest against openstack2 namespace
     type: playbook
-    source: "/home/zuul/src/github.com/openstack-k8s-operators/ci-framework/playbooks/multi-namespace/ns2_validation.yaml"
+    source: "{{ ansible_user_dir }}/src/github.com/openstack-k8s-operators/ci-framework/playbooks/multi-namespace/ns2_validation.yaml"
     extra_vars:
       cifmw_test_operator_tempest_name: tempest-tests2
       cifmw_test_operator_namespace: openstack2