fix(ci): switch pacman mirrors to Garuda direct mirrors to fix download loop and 404s

[thesomewhatyou]

Summary

This PR fixes CI dependency downloads by updating pacman mirror configuration to direct Garuda mirrors, avoiding 303 redirects from the chaotic CDN which caused infinite loops and 404s during dependency download.

Details

• Updated root and airootfs pacman.conf to use:
  • chaotic-aur: https://builds.garudalinux.org/repos/$repo/$arch
  • garuda: https://builds.garudalinux.org/repos/$repo/$arch
• Ensured CI workflow benefits from more reliable mirrors, reducing download failures
• Verified via curl HEAD requests that both repos return HTTP 200 for key databases
• No breaking changes to user workflow; mirrors fallback if network is available

Summary by CodeRabbit

• Chores
  • Updated package repository mirror configuration for package sources to ensure consistent access to package repositories.

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[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

This PR updates the pacman.conf mirror server URLs for the chaotic-aur and garuda repositories, redirecting package metadata requests from Chaotic AUR's CDN mirror to Garuda Linux's repository mirror. No configuration structure or options are modified.

Changes

Cohort / File(s)	Summary
Repository mirror URL updates airootfs/etc/pacman.conf	Server URLs for [chaotic-aur] and [garuda] repositories replaced from https://cdn-mirror.chaotic.cx/$repo/$arch to https://builds.garudalinux.org/repos/$repo/$arch

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

• Verify the new Garuda Linux mirror URL is correct and accessible
• Confirm both repository entries ([chaotic-aur] and [garuda]) are properly updated with consistent formatting

Possibly related PRs

• ci(pacman-mirrors): switch chaotic mirror sources to CDN mirror and enable curl transfers for CI ISO builds #16: Modifies the same pacman.conf Server entries for chaotic-aur and garuda repositories with different mirror targets
• build(iso): streamline GabeOS ISO build with temporary profile and parallelization #15: Updates Server URLs for the same repository entries in the configuration file

Poem

🐰 Whiskers twitch with joy
From chaotic mirrors to Garuda's way,
URLs now point to a brighter day!
The repositories dance, happy and free,
Configuration harmony—as it should be! ✨

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix-ci-deps-download-loop-404-mirror

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 1900a3d and ad5eed6.

📒 Files selected for processing (2)

• airootfs/etc/pacman.conf (1 hunks)
• pacman.conf (1 hunks)

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