`ncu-ci` wait for CI to finish and send desktop notification

[mmarchini]

As title says, ncu-ci could (optionally) wait for a pending CI and send a desktop notification when it's finished, as well as outputting the result.

Something like:

$ ncu-ci --wait url https://ci.nodejs.org/job/node-test-pull-request/29730/
--------------------------------------------------------------------------------
[1/1] Running PR: 29730
--------------------------------------------------------------------------------
⠏  Waiting for CI to complete

[github-actions[bot]]

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