[Merge] ~nteodosio/software-properties:ubuntu/master into software-properties:ubuntu/master

[Nathan Teodosio]

If I understood the discussion in the internal channels correctly,

> cases where the UI warned about an 'invalid token' despite attaching the machine with success

were caused by having Kinetic UA on Jammy system.

Then after this latest commit we are left with only item 3 to do.
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https://code.launchpad.net/~nteodosio/software-properties/+git/software-properties/+merge/434360
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