Update http links

[Laurent Lyaudet]

Hello :),

Thanks for your hard work :)
I have a very simple task for whoever is able to modify and push on main branch.
After "-----" is the text in French when you do:
sudo do-release-upgrade

I believe the URLs are shared with other languages,
but I may be wrong.
It would be nice if someone could just change http to https.
And also the URL:
http://www.ubuntu.com/community/participate/
seems to be redirected one time and the discourse forum says this has been moved elsewhere
https://ubuntu.com/community/contribute
Funny the link adds this:
https://ubuntu.com/community/contribute?_ga=2.221546968.1900727562.1715360393-749654070.1712944369
If someone can check all of this, it would be possible to correct (merged with main) in less than one or 2 hours :).

Best regards,
    Laurent Lyaudet

----------------------------------------------------------------------
Recherche d'une nouvelle version d'Ubuntu

= Welcome to Ubuntu 24.04 LTS 'Noble Numbat' =

The Ubuntu team is proud to announce Ubuntu 24.04 LTS 'Noble Numbat'.

To see what's new in this release, visit:
  https://wiki.ubuntu.com/NobleNumbat/ReleaseNotes

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