Add metall v0.29

[liss-h]

Summary

Changes to recipe: metall/0.29

Motivation

Add new metall v0.29 release

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• Read the contributing guidelines
• Checked that this PR is not a duplicate: list of PRs by recipe
• Tested locally with at least one configuration using a recent version of Conan

[AbrilRBS]

Hi @liss-h, thanks a lot for taking the time to open the PR to keep the library up-to-date, we appreciate it :)

You'll need to add an entry into recipes/metall/config.yml for the new version too for this PR to be mergeable, otherwise the rest looks good!

[liss-h]

Hi, it seems like the CI builds with an old glibc version that does not meet the requirements of metall.

Not entirely sure what to do about this 😅, especially because I didn't change the requirement in the package and it worked previously (#23677)

[AbrilRBS]

Hi @liss-h sorry I missed the notification!

Yes, the CI is currently failing due to its glibc version. I'm planning on bringing this issue up with the team next week, as this isn't the only library with similar problems, and see where we can take it from there

Thanks a lot for your patience, I will ping you once we have a clear plan :)