Add latest changes from gitlab-org/gitlab@master

.gitlab/ci/qa-common/variables.gitlab-ci.yml

app/assets/javascripts/super_sidebar/components/user_bar.vue

app/models/ci/job_token/scope.rb

app/models/clusters/agents/managed_resource.rb

...mas/clusters_agents_managed_resource_tracked_objects.json

...2349_add_tracked_objects_to_clusters_managed_resources.rb

db/schema_migrations/20250311222349

db/structure.sql

doc/.vale/gitlab_base/spelling-exceptions.txt

doc/administration/monitoring/prometheus/gitlab_metrics.md

doc/development/testing_guide/end_to_end/_index.md

doc/user/ai_experiments.md

doc/user/duo_workflow/_index.md

doc/user/todos.md

lib/gitlab/ci/build/prerequisite/managed_resource.rb

lib/gitlab/ci/pipeline/metrics.rb

spec/frontend/super_sidebar/components/user_bar_spec.js

...lib/gitlab/ci/build/prerequisite/managed_resource_spec.rb

spec/lib/gitlab/ci/pipeline/metrics_spec.rb

spec/models/ci/job_token/scope_spec.rb