Kairos release v3.1.3

[mauromorales]

🗺 What's left for release

• Fix image size calculation kairos-agent#499
• Add test and fix recovery upgrade kairos-agent#509

🔦 Highlights

Bug fixes

✅ Release Checklist

• Stage 0 - Finishing Touches
  • Check if Kairos-docs has any open PRs that need to be merged
  • Check if osbuilder is in the wanted version/latest
  • Check if any kairos/packages were bumped. Ensure they were merged and repo updated (Dependency Dashboard kairos-framework#2)
    • Cut a new release of the kairos-framework images
    • Bump the kairos-framework image in kairos
  • CI tests are passing
  • There are no critical CVEs in our internal components
  • Consider cutting an rc, alpha, ... based on changes on the CI
• Stage 1 - Manual testing
  • How: Using the assets from master, make sure that test scenarios not covered by automatic tests are passing, and that docs are still aligned
    • Generic hardware install
      • Manual upgrade
      • Interactive install
      • Manual recovery reset
      • Automatic reset
      • Provider decentralized test (like we used to run automatically)
    • RPi Standard Install (helps validate that partition expansion is working)
      • Manual upgrade
      • Passive booting
      • Recovery booting
      • Manual recovery reset
      • Automatic reset
      • /oem exists
      • k3s is running - the only flavor in which we include k3s is ubuntu 24.04 which is not working
    • Go through any of the known issues https://kairos.io/docs/
• Stage 3 - Release
  • Tag the release on master
  • Update the release with any known issues
• Stage 4 - Announcement
  • Merge docs updates for kairos and k3s version updates
  • Create a branch vX.Y.Z on the docs (not tagging), so the new release can be built and displayed on the menu. Ideally open a PR so we can review and add/remove some commits if needed (in case we have documented WIP which is not available on the given release)
  • Blog post announcement - We decided to skip it this time