Update testcase links in e2e specs

qa/qa/specs/features/browser_ui/2_plan/issue/create_issue_spec.rb

@@ -48,7 +48,7 @@ module QA
           Resource::Issue.fabricate_via_api!.visit!
         end
 
-        it 'comments on an issue with an attachment', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/393' do
+        it 'comments on an issue with an attachment', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/1742' do
           Page::Project::Issue::Show.perform do |show|
             show.comment('See attached banana for scale', attachment: file_to_attach)
 

qa/qa/specs/features/browser_ui/4_verify/testing/view_code_coverage_spec.rb

@@ -33,7 +33,7 @@ module QA
         runner.remove_via_api!
       end
 
-      it 'creates an MR with code coverage statistics', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/807' do
+      it 'creates an MR with code coverage statistics', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/1740' do
         runner.project.visit!
         configure_code_coverage(simplecov)
         merge_request.visit!

qa/qa/specs/features/ee/browser_ui/4_verify/system_cancels_merge_request_in_merge_trains_spec.rb

@@ -94,7 +94,7 @@ module QA
       end
 
       context 'when system cancels a merge request' do
-        it 'creates a TODO task', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/927' do
+        it 'creates a TODO task', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/1741' do
           # Create a merge conflict
           Resource::Repository::Commit.fabricate_via_api! do |commit|
             commit.api_client = user_api_client