Update CHANGELOG.md for 11.7.0

[ci skip]

changelogs/unreleased/deprecated-callback-false.yml

----
-title: 'Fix deprecation: returning false in Active Record and Active Model callbacks
-  will not implicitly halt a callback chain'
-merge_request: 24134
-author: Jasper Maes
-type: other

changelogs/unreleased/deprecated-comparing-actioncontroller-params-hash.yml

----
-title: 'Fix deprecation: Comparing equality between ActionController::Parameters and
-  a Hash is deprecated'
-merge_request: 23855
-author: Jasper Maes
-type: other

changelogs/unreleased/deprecated-delete-all-params.yml

----
-title: 'Fix deprecation: Passing conditions to delete_all is deprecated'
-merge_request: 23817
-author: Jasper Maes
-type: other

changelogs/unreleased/deprecated-directly-inheriting-migration.yml

----
-title: 'Fix deprecation: Directly inheriting from ActiveRecord::Migration is deprecated.'
-merge_request: 23884
-author: Jasper Maes
-type: other

changelogs/unreleased/deprecated-insert-sql.yml

----
-title: 'Fix deprecation: insert_sql is deprecated and will be removed'
-merge_request: 23944
-author: Jasper Maes
-type: other

changelogs/unreleased/deprecated-migration-inheritance-2.yml

----
-title: ActiveRecord::Migration -> ActiveRecord::Migration[5.0] for AddIndexesToCiBuildsAndPipelines
-merge_request: 24167
-author: Jasper Maes
-type: other

changelogs/unreleased/deprecated-passing-activerecord-objects.yml

----
-title: 'Fix deprecation: Passing ActiveRecord::Base objects to sanitize_sql_hash_for_assignment'
-merge_request: 23818
-author: Jasper Maes
-type: other

changelogs/unreleased/deprecated-positional-seperator-parameter.yml

----
-title: Passing the separator argument as a positional parameter is deprecated
-merge_request: 23334
-author: Jasper Maes
-type: other

changelogs/unreleased/deprecated-positional-spec-arguments.yml

----
-title: 'Fix deprecation: Using positional arguments in integration tests'
-merge_request: 24110
-author: Jasper Maes
-type: other

changelogs/unreleased/deprecated-redirect-back.yml

----
-title: 'Fix deprecation: redirect_to :back is deprecated'
-merge_request: 23943
-author: Jasper Maes
-type: other

changelogs/unreleased/diff-empty-state-fixes.yml

----
-title: Fixed merge request diffs empty states
-merge_request:
-author:
-type: fixed

changelogs/unreleased/dm-note-email-image-diff-discussion.yml

----
-title: Fix notification email for image diff notes
-merge_request:
-author:
-type: fixed

changelogs/unreleased/docs-releases-api.yml

----
-title: Adds API documentation for releases
-merge_request: 23901
-author:
-type: added

changelogs/unreleased/error_tracking_feature_flag_fe.yml

----
-title: Display a list of Sentry Issues in GitLab
-merge_request: 23770
-author:
-type: added

changelogs/unreleased/feature-gb-expose-ci-api-url-variable.yml

----
-title: Expose CI/CD predefined variable `CI_API_V4_URL`
-merge_request: 23936
-author:
-type: added

changelogs/unreleased/feature-option-to-make-variables-protected.yml

----
-title: Add option to make ci variables protected by default
-merge_request: 22744
-author: Alexis Reigel
-type: added

changelogs/unreleased/fix-55448.yml

----
-title: Remove deprecated xhr from specs
-merge_request: 23949
-author: Jasper Maes
-type: other

changelogs/unreleased/fix-calendar-events-fetching-error.yml

----
-title: Fix calendar events fetching error on private profile page
-merge_request: 23718
-author: Harry Kiselev
-type: other

changelogs/unreleased/fix-n-plus-1-queries-projects.yml

----
-title: Fix some N+1 queries related to Admin Dashboard, User Dashboards and Activity
-  Stream
-merge_request: 23034
-author:
-type: performance

changelogs/unreleased/fix-runner-eternal-loop-when-update-job-result.yml

----
-title: Fix runner eternal loop when update job result
-merge_request: 24481
-author:
-type: fixed