Automatic gui version

[andrei-toterman]

Set the GUI version using the --build-name and --build-number args, using the MULTIPASS_VERSION CMake var. This way, we don't have to manually update the version all the time.
For the --build-number, the argument must only contain digits, so we extract the digits out of the commit hash respective to the current version.

MULTI-1702

[ricab]

Thank you @andrei-toterman!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.94%. Comparing base (7074116) to head (8c24637).
Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3806   +/-   ##
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  Coverage   88.94%   88.94%           
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  Files         256      256           
  Lines       14584    14584           
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  Hits        12972    12972           
  Misses       1612     1612           

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[ricab]

Hey Andrei. The approach looks solid. Just a couple things inline.

[ricab]

This whole block could be run as a separate step, right? Could we have a separate function for it instead, and call it only where relevant (i.e. Flutter build, possibly MSI stuff later)?

[andrei-toterman]

I can't be sure what you are referring to, because GitHub shows you highlighted only an empty line, but I guess you mean this whole new algorithm for extracting those two version components. And yes, we could definitely move it to a new function and call it only in the GUI cmake file.

[ricab]

Yes, that is what I meant. Should have been clearer. BTW, I like that you are printing the vars that are getting derived. It would be nice if you could keep that.

[ricab]

Approving on the same grounds as on the other side.

[sharder996]

LGTM