Replace all snowplow mocks with the spec helper

See merge request gitlab-org/gitlab!46695

This removes all existing offenses, where we mocked `Gitlab::Tracking`
instead of using the Snowplow spec helper.

Add PyPI package manager test

See merge request gitlab-org/gitlab!46230

Resolve "Implement GraphQL Startup.js for Design Management app"

See merge request gitlab-org/gitlab!46660

Update Gitaly version

See merge request gitlab-org/gitlab!46778

Add filtering by recorded at date to measurements

See merge request gitlab-org/gitlab!46344

Stop Snippet fixtures from repeatedly cloning

See merge request gitlab-org/gitlab!46480

Optionally match "Is using seat"

See merge request gitlab-org/gitlab!46764

Update issue header actions UI

See merge request gitlab-org/gitlab!44440

Consolidate various issue actions into a dropdown menu so that
all issue actions are in one place, improving UX

danger: Allow section prefix in commit messages

See merge request gitlab-org/gitlab!46474

This change adds filtering capabilities by recorded at to instance
statistics measurements GraphQL api.

Update Gitaly version

See merge request gitlab-org/gitlab!46767

Add clarifications to ### Change your personal details

See merge request gitlab-org/gitlab!45539

Feature flags should be created with underscores

See merge request gitlab-org/gitlab!46290

Improve a bit the commit message guidelines

See merge request gitlab-org/gitlab!46372

Signed-off-by: Rémy Coutable <remy@rymai.me>

Add lefthook configuration for documentation

See merge request gitlab-org/gitlab!46517

Update haml_lint from 0.34.0 to 0.36.0

See merge request gitlab-org/gitlab!44914

Add group_coverage_data_report_graph feature flag

See merge request gitlab-org/gitlab!46698

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

Minor modifications to wiki "delete page" modal

See merge request gitlab-org/gitlab!45740

- make button "secondary" style
- make button text "delete page"
- make modal smaller
- add cancel button to modal

Instead we can clone once, create a bundle on disk,
then use that repo bundle to create the rest of the
snippets

Update dependency dompurify to ^2.2.2

See merge request gitlab-org/gitlab!46715

Bump auto-deploy-image to 1.0.7

See merge request gitlab-org/gitlab!46531

Fetch projects from subgroups in ProjectsGrade

See merge request gitlab-org/gitlab!46684

Labels Dropdown: Autofocus on search input after labels load

See merge request gitlab-org/gitlab!46750

Remove some usages of Timecop.freeze

See merge request gitlab-org/gitlab!46375

Merge branch '273591-danger-issues-a-warning-and-an-error-for-an-incorrect-multi-line-commit-messages-when-mr-is' into 'master'

Prevent Danger from showing both an error and a warning in some cases

See merge request gitlab-org/gitlab!46460

This fixes issues for users who depend on other charts from stable repo.

Add a loding indicator for the submit button in the CI lint page

See merge request gitlab-org/gitlab!46671

Add 12.1.x upgrade step prior to 12.10.x upgrade

See merge request gitlab-org/gitlab!46632