Quarantine failing E2E specs

Specs need investigation
Signed-off-by: Nailia Iskhakova <niskhakova@gitlab.com>

qa/qa/specs/features/browser_ui/3_create/web_ide/open_fork_in_web_ide_spec.rb

@@ -2,7 +2,7 @@
 
 module QA
   RSpec.describe 'Create' do
-    describe 'Open a fork in Web IDE' do
+    describe 'Open a fork in Web IDE', quarantine: { issue: 'https://gitlab.com/gitlab-org/gitlab/-/issues/284081', type: :investigating } do
       let(:parent_project) do
         Resource::Project.fabricate_via_api! do |project|
           project.name = 'parent-project'

qa/qa/specs/features/ee/browser_ui/2_plan/epic/epics_management_spec.rb

@@ -36,7 +36,7 @@ module QA
             epic.visit!
           end
 
-          it 'adds/removes issue to/from epic', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/526' do
+          it 'adds/removes issue to/from epic', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/526', quarantine: { issue: 'https://gitlab.com/gitlab-org/gitlab/-/issues/283932', type: :investigating } do
             EE::Page::Group::Epic::Show.perform do |show|
               show.add_issue_to_epic(issue.web_url)