No need to purge NetBSD from CI

[deep-soft]

Refering to:
ac5b972
Don't know if there is someone with netbsd who can test this, but there is no need to purge NetBSD from CI.

To fix CI:
in file:
src/cb/src/externalclipboards.cpp
at line: 17
insert this:
#include

[Slackadays]

The other reason I purged NetBSD is because the Cross Platform Actions system is really unreliable with NetBSD so it often fails for no reason. However, I can make that fix and see if it helps at all :)

[Slackadays]

@deep-soft there we go again https://github.com/Slackadays/Clipboard/actions/runs/5137185542/jobs/9244947916

[deep-soft]

I don't have NetBSD and can't test Clipboard on that platform, but I tried to fix CI to run on all of those platforms.
Of course it's you're call, to keep NetBSD or not.