Verify storage move in separate praefect container

This is needed after updating the Praefect scenario to use a full
Gitaly Cluster config

See https://gitlab.com/gitlab-org/gitlab-qa/-/merge_requests/536

qa/qa/service/praefect_manager.rb

@@ -387,7 +387,7 @@ module QA
       end
 
       def verify_storage_move_to_praefect(repo_path, virtual_storage)
-        wait_until_shell_command("docker exec #{@gitlab} bash -c 'tail -n 50 /var/log/gitlab/praefect/current'") do |line|
+        wait_until_shell_command("docker exec #{@praefect} bash -c 'tail -n 50 /var/log/gitlab/praefect/current'") do |line|
           log = JSON.parse(line)
 
           log['grpc.method'] == 'ReplicateRepository' && log['virtual_storage'] == virtual_storage && log['relative_path'] == repo_path

qa/qa/specs/features/api/3_create/gitaly/changing_repository_storage_spec.rb

@@ -4,7 +4,6 @@ module QA
   RSpec.describe 'Create' do
     describe 'Changing Gitaly repository storage', :requires_admin do
       praefect_manager = Service::PraefectManager.new
-      praefect_manager.gitlab = 'gitlab'
 
       shared_examples 'repository storage move' do
         it 'confirms a `finished` status after moving project repository storage' do
@@ -28,7 +27,6 @@ module QA
       context 'when moving from one Gitaly storage to another', :orchestrated, :repository_storage, testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/973' do
         let(:source_storage) { { type: :gitaly, name: 'default' } }
         let(:destination_storage) { { type: :gitaly, name: QA::Runtime::Env.additional_repository_storage } }
-
         let(:project) do
           Resource::Project.fabricate_via_api! do |project|
             project.name = 'repo-storage-move-status'
@@ -37,6 +35,10 @@ module QA
           end
         end
 
+        before do
+          praefect_manager.gitlab = 'gitlab'
+        end
+
         it_behaves_like 'repository storage move'
       end
 
@@ -46,7 +48,6 @@ module QA
       context 'when moving from Gitaly to Gitaly Cluster', :requires_praefect, testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/974' do
         let(:source_storage) { { type: :gitaly, name: QA::Runtime::Env.non_cluster_repository_storage } }
         let(:destination_storage) { { type: :praefect, name: QA::Runtime::Env.praefect_repository_storage } }
-
         let(:project) do
           Resource::Project.fabricate_via_api! do |project|
             project.name = 'repo-storage-move'
@@ -56,6 +57,10 @@ module QA
           end
         end
 
+        before do
+          praefect_manager.gitlab = 'gitlab-gitaly-cluster'
+        end
+
         it_behaves_like 'repository storage move'
       end
     end