chore: upgrade Astro v6

[ematipico]

Summary

Closes #4070

Feel free to take over or add other commits in order to fix the build if it fails

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[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 4b547839-0085-4b5b-8999-992d341041a7

📥 Commits

Reviewing files that changed from the base of the PR and between ffc2626 and 3a77d5b.

📒 Files selected for processing (1)

• src/components/Maintainers.astro

💤 Files with no reviewable changes (1)

• src/components/Maintainers.astro

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Walkthrough

Updated project to Astro v6 and bumped related Starlight/Astro devDependencies. Switched several blog author avatar URLs to GitHub’s avatars.githubusercontent.com format. Removed the Vite alias mapping @ → ./src. Enabled experimental.queuedRendering with contentCache: true and poolSize: 2000. Changed Zod import from astro:content to astro/zod. Made many internal imports explicit by adding .ts extensions. Reworked src/content/team.json shape (string usernames → numeric ids) and adjusted avatar/component code to use the new member.id field.

Possibly related PRs

• feat(ja): update more outdated Japanese documentation  #3974 — touches the Maintainers component and is related at the code level to changes in src/components/Maintainers.astro.

Suggested reviewers

• arendjr

🚥 Pre-merge checks | ✅ 3 | ❌ 1

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Out of Scope Changes check	❓ Inconclusive	Changes include necessary configuration adjustments (avatar URLs, import paths, schema updates) and team membership updates that appear related to the Astro upgrade, though some changes like avatar URL restructuring warrant clarification.	Verify that avatar URL changes and team.json restructuring are necessary consequences of the Astro v6 upgrade, or confirm they are intentional companion changes.

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main change: upgrading Astro to v6, which aligns with the primary objective of the pull request.
Description check	✅ Passed	The description references the linked issue (#4070) and is related to the changeset, though minimal in detail. It adequately conveys that this PR addresses the Astro v6 upgrade.
Linked Issues check	✅ Passed	The PR successfully upgrades Astro from v5.16.15 to v6.0.8 and related dependencies, addressing the core requirement of issue #4070 to upgrade Astro to v6.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/upgrade-astro-v6

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@src/components/GitHubAvatar.astro`:
- Around line 14-15: The avatar image URL in src/components/GitHubAvatar.astro
uses avatars.githubusercontent.com (see the image template variable using
member.data.id), but that hostname is not included in the Astro image allowlist;
update the Astro config's image.domains array (the domains list in
astro.config.ts) to add "avatars.githubusercontent.com" alongside "github.com",
"raw.githubusercontent.com" and "img.shields.io" so Astro can optimise the
avatar images referenced by the image variable in GitHubAvatar.astro.

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: a8a9b360-ee63-4daf-b5b0-e879c80bdd7b

📥 Commits

Reviewing files that changed from the base of the PR and between 3984220 and ffc2626.

📒 Files selected for processing (4)

• src/components/Avatar.astro
• src/components/GitHubAvatar.astro
• src/content.config.ts
• src/content/team.json

🚧 Files skipped from review as they are similar to previous changes (1)

• src/content.config.ts

[coderabbitai]

⚠️ Potential issue | 🟠 Major

🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
set -euo pipefail

fd -HI '^astro\.config\.(mjs|mts|ts|js|cjs)$' -t f | while read -r file; do
  echo "== $file =="
  rg -n 'avatars\.githubusercontent\.com|image\s*:|remotePatterns|domains' "$file" || true
done

Repository: biomejs/website

Length of output: 589

---

Add avatars.githubusercontent.com to Astro image domains allowlist.

The code uses avatars.githubusercontent.com for avatar images, but it's missing from the domains array in astro.config.ts (line 1037). Add it alongside the other GitHub domains to enable image optimisation.

Allowlist fix location

image: {
	domains: ["github.com", "raw.githubusercontent.com", "avatars.githubusercontent.com", "img.shields.io"],

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/components/GitHubAvatar.astro` around lines 14 - 15, The avatar image URL
in src/components/GitHubAvatar.astro uses avatars.githubusercontent.com (see the
image template variable using member.data.id), but that hostname is not included
in the Astro image allowlist; update the Astro config's image.domains array (the
domains list in astro.config.ts) to add "avatars.githubusercontent.com"
alongside "github.com", "raw.githubusercontent.com" and "img.shields.io" so
Astro can optimise the avatar images referenced by the image variable in
GitHubAvatar.astro.