Switch to ubuntu-lts-latest for all .readthedocs.yaml in openedx org

[robrap]

Switching all .readthedocs.yaml config files to reference ubuntu-lts-latest, rather than a specific ubuntu version, will provide one fewer set of changes needed in the future.

• Here is a working example from a 2U/edx repo
• Here is an example from edx-platform that we would updated to ubuntu-lts-latest.

FYI: @sarina

[UsamaSadiq]

@robrap are we looking only in the edx-platform workflows for this? There are some workflows which are still using old ubuntu version which need to be updated.
For most of the open edX packages, the requested change was performed in the issues #313 and #277.

There are only 16 remaining files including test files instances of workflows in openedx org which are referencing old ubuntu workflows.

[robrap]

@UsamaSadiq:

1. I was only looking at .readthedocs.yml. These specifically need to be fixed using ubuntu-lts-latest.
2. Your search was missing a hyphen in ubuntu-22.04, which most of the .readthedocs.yml files were using. See updated version of your instances search.
3. If this is a duplicate of another ticket, it could be closed, but only if the other ticket includes all of this information.

Thank you.

[UsamaSadiq]

Ah got it. I can take on this work to update across all instances where the update is needed.
@sarina please assign this issue to me.

[sarina]

Done! @UsamaSadiq you can make a standalone comment that only says

assign me

and the issue will be assigned to you! See https://openedx.atlassian.net/wiki/spaces/COMM/pages/3536815057/Working+group+issue+commands for more!

[UsamaSadiq]

Here is the final list of the repositories containing .readthedocs.yaml or .readthedocs.yml files which will be needed to update.