build(deps): Bump wagtail from 2.11.9 to 6.3.8

[dependabot]

Bumps wagtail from 2.11.9 to 6.3.8.

Release notes

Sourced from wagtail's releases.

6.3.8

• Fix: CVE-2026-28222: Improper escaping of HTML (Cross-site Scripting) on TableBlock class attributes (Guan Chenxian, Matt Westcott)
• Fix: CVE-2026-28223: Improper escaping of HTML (Cross-site Scripting) in simple_translation admin interface (Guan Chenxian, Matt Westcott)

6.3.7

• Remove upper bound on Pillow dependency

6.3.6

• Fix: Remove ngram parser on MySQL that prevented autocomplete search from returning results (Vince Salvino)
• Fix: CVE-2026-25517: Improper permission handling on admin preview endpoints (thxtech, Matt Westcott, Jake Howard)

6.3.5

• Fix: Use correct URL when redirecting back to the listing after filtering and deleting form submissions (Sage Abdullah)
• Fix: Fix broken migration when ListBlock is defined with a child_block kwarg (Matt Westcott)
• Maintenance: Use utf8mb4 charset and collation for MySQL test database (Sage Abdullah)

6.3.4

• Added support for Django 5.2
• Fix: Add missing “Close” label to the upgrade notification dismiss button (Sage Abdullah)
• Fix: Fix white text on white background in previews for sites that use color-scheme without a background-color (Sage Abdullah)
• Maintenance: Remove upper version boundary for django-filter (Dan Braghis)

v6.3.3

• Fix: Correctly place comment buttons next to date / datetime / time fields. (Srishti Jaiswal)
• Fix: Reduce confusing spacing below StreamField blocks help text (Rishabh Sharma)
• Fix: Make sure alt text quality check is on by default as documented (Thibaud Colas)
• Fix: Prevent StreamChildrenToListBlockOperation from duplicating data across multiple StreamField instances (Joshua Munn)
• Fix: Prevent database error when calling permission_order.register on app ready (Daniel Kirkham, Matt Westcott)
• Fix: Prevent error on lazily loading StreamField blocks after the stream has been modified (Stefan Hammer)
• Fix: Prevent syntax error on MySQL search when query includes symbols (Matt Westcott)
• Docs: Update example for customizing "p-as-heading" accessibility check without overriding built-in checks (Cynthia Kiser)
• Docs: Update accessibility considerations on alt text in light of contextual alt text improvements (Cynthia Kiser)
• Docs: Revert incorrect example of appending a RichTextBlock to a StreamField (Matt Westcott)

6.3.2

• Fix: Ensure Cloudfront cache invalidation is called with a list, for compatibility with current botocore versions (Jake Howard)
• Fix: Ensure Draftail features wrap when a large amount of features are added (Bart Cieliński)
• Fix: Implement get_block_by_content_path on ImageBlock to prevent errors on commenting (Matt Westcott)
• Docs: Update tutorial to reflect the move of the "Add child page" action to a top-level button in the header as a '+' icon (Clifford Gama)

6.3.1

• Fix: Restore ability to upload profile picture through account settings (Sage Abdullah)
• Fix: Correctly handle ImageChooserBlock to ImageBlock data conversions where all inputs to bulk_to_python are null (Storm Heg, Matt Westcott)
• Fix: Improve spacing of page / collection permissions table in Group settings (Sage Abdullah)
• Fix: Remove forced capitalization of site name on admin dashboard (Thibaud Colas)
• Docs: Reword BlogTagIndexPage example for clarity (Clifford Gama)
• Docs: Change title of blog index page in tutorial to avoid slug issues (Thibaud Colas)
• Docs: Fix wagtailcache and wagtailpagecache examples to not use quotes for the fragment_name (Shiv)
• Docs: Lower search result ranking for release notes on readthedocs search (Sage Abdullah)

... (truncated)

Changelog

Sourced from wagtail's changelog.

6.3.8 (03.03.2026)

 * Fix: CVE-2026-28222: Improper escaping of HTML (Cross-site Scripting) on TableBlock class attributes (Guan Chenxian, Matt Westcott)
 * Fix: CVE-2026-28223: Improper escaping of HTML (Cross-site Scripting) in simple_translation admin interface (Guan Chenxian, Matt Westcott)
6.3.7 (12.02.2026)

• Remove upper bound on Pillow dependency

6.3.6 (03.02.2026)

 * Fix: Remove ngram parser on MySQL that prevented autocomplete search from returning results (Vince Salvino)
 * Fix: CVE-2026-25517: Improper permission handling on admin preview endpoints (thxtech, Matt Westcott, Jake Howard)
6.3.5 (12.06.2025)

• Fix: Use correct URL when redirecting back to the listing after filtering and deleting form submissions (Sage Abdullah)
• Fix: Fix broken migration when ListBlock is defined with a child_block kwarg (Matt Westcott)
• Maintenance: Use utf8mb4 charset and collation for MySQL test database (Sage Abdullah)

6.3.4 (24.04.2025)

 * Added support for Django 5.2
 * Fix: Add missing “Close” label to the upgrade notification dismiss button (Sage Abdullah)
 * Fix: Fix white text on white background in previews for sites that use color-scheme without a background-color (Sage Abdullah)
 * Maintenance: Remove upper version boundary for django-filter (Dan Braghis)
6.3.3 (03.02.2025)

• Fix: Correctly place comment buttons next to date / datetime / time fields. (Srishti Jaiswal)
• Fix: Reduce confusing spacing below StreamField blocks help text (Rishabh Sharma)
• Fix: Make sure alt text quality check is on by default as documented (Thibaud Colas)
• Fix: Prevent StreamChildrenToListBlockOperation from duplicating data across multiple StreamField instances (Joshua Munn)
• Fix: Prevent database error when calling permission_order.register on app ready (Daniel Kirkham, Matt Westcott)
• Fix: Prevent error on lazily loading StreamField blocks after the stream has been modified (Stefan Hammer)
• Fix: Prevent syntax error on MySQL search when query includes symbols (Matt Westcott)
• Docs: Update example for customizing "p-as-heading" accessibility check without overriding built-in checks (Cynthia Kiser)
• Docs: Update accessibility considerations on alt text in light of contextual alt text improvements (Cynthia Kiser)
• Docs: Revert incorrect example of appending a RichTextBlock to a StreamField (Matt Westcott)

... (truncated)

Commits

• 0a473e5 Version bump to 6.3.8 final
• 827f43b Do not hardcode hash in TestImage.test_file_hash
• ce8e0f8 Release note for CVE-2026-28223 in 6.3.8
• d8c5900 Enforce HTML escaping of all confirmation / warning / error messages
• 80aefaf Release note for CVE-2026-28222 in 6.3.8
• 0375094 Correctly escape class, rowspan and colspan attributes in TableBlock HT...
• 19ed169 Bump minimum Willow version to v1.11.0
• 7dfb343 Update doc8 to 1.1.2
• 823969d Version bump to 6.3.7
• c2d7e00 Release notes for 6.3.7
• Additional commits viewable in compare view

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