This resolves issue #101963.

When the service is started and no interface is ready yet, wpa_supplicant
is being exec'd with no `-i` flags, thus failing. Once the interfaces
are ready, the udev rule would fire but wouldn't restart the unit because
it wasn't currently running (see systemctl(1) try-restart).

The solution is to exit (with a clear error message) but always restart
wpa_supplicant when the interfaces are modified.

nixos/wireless: fix failure with no interfaces

Docker (via containerd) and the the OCI Image Configuration imply and
suggest, respectfully, that the architecture set in images matches those
of GOARCH in the Go Language document.

This changeset updates the implimentation of getArch in dockerTools to
return GOARCH values, to satisfy Docker.

Fixes: #106695

Not everyone has a suitable remote builder set up, so the cross-compilation
tests that _include_ running the result are separate. That way, most people
can run the majority of the test suite without the extra setup.

For the current version normtest and graphemetest are disabled. This
will probably change in the future. Those tests are problematic because
they depend on unicode data files which are downloaded by cmake at build
time:

    file(MAKE_DIRECTORY data)
    set(UNICODE_VERSION 13.0.0)
    file(DOWNLOAD https://www.unicode.org/Public/${UNICODE_VERSION}/ucd/NormalizationTest.txt data/NormalizationTest.txt SHOW_PROGRESS)
    file(DOWNLOAD https://www.unicode.org/Public/${UNICODE_VERSION}/ucd/auxiliary/GraphemeBreakTest.txt data/GraphemeBreakTest.txt SHOW_PROGRESS)

For the next update, we'll probably need to patch out this section of
CMakeLists.txt and download the files in question with fetchurl
ourselves.

nixos/plasma5: test that KDED runs at startup

dockerTools: normalize arch to GOARCH

pythonPackages.debugpy: 1.2.0 -> 1.2.1