fix: bump docker

[janishorsts]

This fixes and simplifies the release flow for the newest Docker:

The release workflow relies on file changes rather than branch name changes.

[github-actions]

🎉 Are we earthbuild yet?

Great progress! You've reduced "earthly" occurrences by 2 (8.00%)

📈 Overall Progress

Branch	Total Count
main	25
This PR	23
Difference	-2 (8%)

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Keep up the great work migrating from Earthly to Earthbuild! 🚀

💡 Tips for finding more occurrences

Run locally to see detailed breakdown:

./.github/scripts/count-earthly.sh

Note that the goal is not to reach 0.
There is anticipated to be at least some occurences of earthly in the source code due to backwards compatibility with config files and language constructs.

[gemini-code-assist]

Code Review

This pull request refactors the Renovate configuration to use more specific regex patterns and separate rules for different operating systems, improving dependency tracking via Repology and GitHub Releases. The Earthfile was updated to remove automatic OS detection from branch names in the release target, which now requires an explicit OS argument. Review feedback identifies this as a breaking change for CI/CD pipelines and notes a potential version regression for Ubuntu 26.04 where the Docker version was downgraded.