Add latest changes from gitlab-org/gitlab@12-7-stable-ee

changelogs/unreleased/kerrizor-enable-redis-diff-caching-by-default.yml

----
-title: Enable redis HSET diff caching by default
-merge_request: 23105
-author:
-type: performance

changelogs/unreleased/link-types-api-rest.yml

----
-title: Expose issue link type in REST API
-merge_request: 21375
-author:
-type: added

changelogs/unreleased/lm-ignore-sentry-errors-from-list-view.yml

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-title: Implement ability to ignore Sentry errrors from the list view
-merge_request: 22819
-author:
-type: added

changelogs/unreleased/lm-resolve-sentry-errors-from-list-view.yml

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-title: Resolve Sentry errors from error tracking list
-merge_request: 23135
-author:
-type: added

changelogs/unreleased/lru-object-caching-group-project-object-builder.yml

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-title: LRU object caching for GroupProjectObjectBuilder
-merge_request: 21823
-author:
-type: performance

changelogs/unreleased/make-resource-grouped-job-cancellable.yml

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-title: Make jobs with resource group cancellable
-merge_request: 22356
-author:
-type: fixed

changelogs/unreleased/mark-some-as-not-required-during-import.yml

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-title: Add `importing?` to disable some callbacks
-merge_request:
-author:
-type: performance

changelogs/unreleased/mk-add-geo-node-name-to-check-task.yml

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-title: 'Geo: Check current node in gitlab:geo:check Rake task'
-merge_request: 22436
-author:
-type: added

changelogs/unreleased/namespace-labels.yml

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-title: Assign labels to the GMA and project k8s namespaces
-merge_request: 23027
-author:
-type: added

changelogs/unreleased/nfriend-add-environments-dashboard-message.yml

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-title: Add informational message about page limits to environments dashboard
-merge_request: 22489
-author:
-type: added

changelogs/unreleased/nicolasdular-split-signup-full-name.yml

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-title: Update name max length
-merge_request: 22840
-author:
-type: changed

changelogs/unreleased/notes_api_system_filter.yml

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-title: 25968-activity-filter-to-notes-api
-merge_request: 21159
-author: jhenkens
-type: added

changelogs/unreleased/omniauth-redirect-loop.yml

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-title: "Prevent omniauth signup redirect loop"
-merge_request: 22432
-author: Balazs Nagy
-type: fixed

changelogs/unreleased/parent-child-upstream-downstream-labels.yml

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-title: Add child and parent labels to pipelines
-merge_request: 21332
-author:
-type: added

changelogs/unreleased/patch-36.yml

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-title: refactor javascript to remove Immediately Invoked Function Expression from
-  project file search
-merge_request: 19192
-author: Brian Luckenbill
-type: other

changelogs/unreleased/ph-195831-hideTabPopoverForAnonUsers.yml

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-title: Hide merge request tab popover for anonymous users
-merge_request: 22613
-author:
-type: fixed

changelogs/unreleased/pl-nil-guard-extract-sentry-external-url.yml

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-title: Fix extracting Sentry external URL when URL is nil
-merge_request: 23162
-author:
-type: fixed

changelogs/unreleased/pokstad1-bump-gitaly-1-80-0.yml

----
-title: Update Gitaly to v1.80.0
-merge_request: 22654
-author:
-type: other

changelogs/unreleased/polish-user-popover.yml

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-title: Remove extra whitespace in user popover
-merge_request: 19938
-author:
-type: fixed

changelogs/unreleased/pravi-gitlab-update-d3.yml

----
-title: Update d3 to 5.12
-merge_request: 20627
-author: Praveen Arimbrathodiyil
-type: other