Should help catch errors like initializing a q-ptr with itself[1].

[1] https://invent.kde.org/frameworks/knewstuff/-/commit/d09ba1917cb7e035a9aac6c27c86fc4df5da3194

I was seeing `error: No such remote 'origin'` in the cmake output.
This commit avoids hardcoding `origin` as the upstream URL and instead
uses the `git rev-parse @{u}` to get the configured upstream.

As a follow-up we may want to check if this should be executed by default,
but for now this fixes a warning that I'm seeing with various projects.

wl_resource_for_each_safe is used in kwayland-server, and as the name
suggests is a for-each like function.

If people ship their own clang-format file they might still have the copyright, because
they forked it. Instead search for the notice that the file is autogenerated.

Git on Windows provides bash

With non-GNU tar, passing the --sort option may print out an
error message saying the option isn't supported; that's
confusing and not useful to the consumer.

This will prevent the macro definition of min and max which breaks
the use of std::min and std::max

Also add trigger to switch to KDE_COMPILERSETTINGS_LEVEL of latest
KDECompilerSettings on ECM dependency in KF modules to 5.85

NO_CHANGELOG