chore(deps): update dependency wagtail to v4.1.8 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
wagtail (source, changelog)	==4.1.6 -> ==4.1.8

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Release Notes

wagtail/wagtail (wagtail)

### [`v4.1.8`](https://togithub.com/wagtail/wagtail/releases/tag/v4.1.8): 4.1.8 [Compare Source](https://togithub.com/wagtail/wagtail/compare/v4.1.7...v4.1.8) - Maintenance: Additionally update Pillow dependency to allow use of versions with security fixes (Dan Braghis) ### [`v4.1.7`](https://togithub.com/wagtail/wagtail/releases/tag/v4.1.7): 4.1.7 [Compare Source](https://togithub.com/wagtail/wagtail/compare/v4.1.6...v4.1.7) - Maintenance: Relax Willow dependency to allow use of current Pillow versions with security fixes (Dan Braghis)

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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