Update dependency holidays to v0.91

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
holidays (changelog)	==0.90 → ==0.91

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Release Notes

vacanza/holidays (holidays)

v0.91

Compare Source

Released February 16, 2026

• Refactor United Kingdom holidays (#​3262 by @​KJhellico)
• Update Australia holidays: add extra ANZAC Day holiday in NSW (#​3273 by @​simongreen-net, @​arkid15r)
• Update Ireland holidays: add OPTIONAL category (#​3260 by @​PredictiveManish)
• Update README: fix Snyk badge (#​3250 by @​KJhellico)
• Update United Kingdom holidays: add Jun 15, 2026 holiday in Scotland (#​3272 by @​KJhellico)
• Update dependencies: pre-commit + make update (#​3258 by @​arkid15r)
• Add "Report-Msgid-Bugs-To" entry to .po files header (#​3274 by @​KJhellico)

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