Update minimum supported Astro version to 5.1

[delucis]

Description

• Updates our development versions of Astro to 5.1.1
• Updates the minimum supported of Astro to 5.1.0
• This bump is needed for both Fixes code example colour contrast #2708 and feat: Adds print styles for Starlight docs pages #157

[changeset-bot]

🦋 Changeset detected

Latest commit: 3c00149

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@astrojs/starlight	Minor

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[astrobot-houston]

size-limit report 📦

Path	Size
/index.html	6.99 KB (-0.05% 🔽)
/_astro/*.js	21.19 KB (0%)
/_astro/*.css	13.75 KB (0%)

[HiDeoo]

Small note that the dev version can not be updated until withastro/astro#12652 is fixed.

[delucis]

Small note that the dev version can not be updated until withastro/astro#12652 is fixed.

Ohhhh, you even said that already in #2612 (comment)

Damn, that makes this really tricky. We can’t really have a dev version lower than our minimum supported version I don’t think?