chore: pin ubuntu-22.04 runner for linux actions

[giacomocusinato]

Motivation

Ubuntu 24.04 is the new default version for Ubuntu latest runner actions/runner-images#10636

Ubuntu 24.04 no longer includes the libsecret-1-dev dependency required by keytar on Linux.
keytar is now deprecated and it's a dependency on both IDE2 and Theia eclipse-theia/theia#13593

During the transition of getting away fromkeytar, we should use pin runner to ubuntu-22.04 to ensure libsecret-1-dev is present.

Change description

Other information

This might be a better solution then manually installing dependency on each task #2647

Any suggestion on which solution to adopt is appreciated

Reviewer checklist

• PR addresses a single concern.
• The PR has no duplicates (please search among the Pull Requests before creating one)
• PR title and description are properly filled.
• Docs have been added / updated (for bug fixes / features)

[per1234]

I think #2647 is the better solution. The reason being that this solution will stop working when GitHub removes the ubuntu-22.04 runner, whereas #2647 is a permanent fix.

The exception would be if we had some indication that the packages will eventually be added to the ubuntu-24.04 runner, and this is only intended to be a temporary workaround until that time. However, I haven't found anything to indicate that might happen (I did see a report here, but no response) and I think the ubuntu-24.04 runner is fairly mature at this point.

[giacomocusinato]

Thanks for the input @per1234.
I don't have a strong opinion on this, so I agree on keeping ubuntu-latest for better long term support.
Eventually if we move away from the keytar dependency we can remove the additional manual setup for Linux.

I'm closing this draft in favour of #2647