Stub snapshot rename support in request specs

Author: prashantsrivastava6

spec/requests/snapshots_spec.rb

@@ -219,6 +219,8 @@
         vm = FactoryBot.create(:vm_vmware, :name => "Alice's VM", :host => host, :ext_management_system => ems)
         snapshot = FactoryBot.create(:snapshot, :name => "Alice's snapshot", :vm_or_template => vm)
 
+        stub_supports(vm, :rename_snapshot)
+
         post(api_vm_snapshot_url(nil, vm, snapshot), :params => {:action => "rename_snapshot", :name => "renamed snapshot"})
 
         expected = {
@@ -581,6 +583,8 @@
         instance = FactoryBot.create(:vm_openstack, :name => "Alice's Instance", :ext_management_system => ems, :host => host)
         snapshot = FactoryBot.create(:snapshot, :name => "Alice's snapshot", :vm_or_template => instance)
 
+        stub_supports(instance, :rename_snapshot)
+
         post(api_instance_snapshot_url(nil, instance, snapshot), :params => {:action => "rename_snapshot", :name => "renamed snapshot"})
 
         expected = {