Update CHANGELOG.md for 8.17.0

[ci skip]

changelogs/unreleased/8082-permalink-to-file.yml

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-title: Add `y` keyboard shortcut to move to file permalink
-merge_request:
-author:

changelogs/unreleased/9-0-api-changes.yml

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-title: Remove deprecated MR and Issue endpoints and preserve V3 namespace
-merge_request: 8967
-author:

changelogs/unreleased/Add-a-shash-command-for-target-merge-request-branch.yml

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-title: Adds /target_branch slash command functionality for merge requests
-merge_request:
-author: YarNayar

changelogs/unreleased/add_project_update_hook.yml

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-title: Add system hook for when a project is updated (other than rename/transfer)
-merge_request: 5711
-author: Tommy Beadle

changelogs/unreleased/api-remove-snippets-expires-at.yml

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-title: 'API: Remove deprecated ''expires_at'' from project snippets'
-merge_request: 8723
-author: Robert Schilling

changelogs/unreleased/babel-all-the-things.yml

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-title: use babel to transpile all non-vendor javascript assets regardless of file
-  extension
-merge_request: 8988
-author:

changelogs/unreleased/broken_iamge_when_doing_offline_update_check-help_page-.yml

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-title: Hide version check image if there is no internet connection
-merge_request: 8355
-author: Ken Ding

changelogs/unreleased/change_queue_weight.yml

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-title: Increase process_commit queue weight from 2 to 3
-merge_request: 9326
-author: blackst0ne

changelogs/unreleased/clipboard-button-commit-sha.yml

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-title: 'Copy commit SHA to clipboard'
-merge_request: 8547

changelogs/unreleased/contribution-calendar-scroll.yml

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-title: contribution calendar scrolls from right to left
-merge_request:
-author:

changelogs/unreleased/cop-gem-fetcher.yml

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-title: Cop for gem fetched from a git source
-merge_request: 8856
-author: Adam Pahlevi

changelogs/unreleased/copy-as-md.yml

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-title: Copying a rendered issue/comment will paste into GFM textareas as actual GFM
-merge_request:
-author:

changelogs/unreleased/disable-autologin-on-email-confirmation-links.yml

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-title: Disable automatic login after clicking email confirmation links
-merge_request: 7472
-author:

changelogs/unreleased/display-project-id.yml

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-title: Display project ID in project settings
-merge_request: 8572
-author: winniehell

changelogs/unreleased/document-how-to-vue.yml

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-title: Adds documentation for how to use Vue.js
-merge_request: 8866
-author:

changelogs/unreleased/dynamic-todos-fixture.yml

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-title: Replace static fixture for right_sidebar_spec.js
-merge_request: 9211
-author: winniehell

changelogs/unreleased/dz-nested-groups-improvements-2.yml

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-title: Add read-only full_path and full_name attributes to Group API
-merge_request: 8827
-author:

changelogs/unreleased/empty-selection-reply-shortcut.yml

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-title: Change the reply shortcut to focus the field even without a selection.
-merge_request: 8873
-author: Brian Hall

changelogs/unreleased/fe-commit-mr-pipelines.yml

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-title: Use vue.js Pipelines table in commit and merge request view
-merge_request: 8844
-author:

changelogs/unreleased/feature-success-warning-icons-in-stages-builds.yml

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-title: Use warning icon in mini-graph if stage passed conditionally
-merge_request: 8503
-author: