gvariant test: Don't run at build-time on mips
gvariant test: Don't run at build-time on mips

DEB_ALLOW_FLAKY_TESTS is not quite right here, because we don't know
that the test would fail if left for long enough - the problem is that
it doesn't get there, because generating random floating-point numbers
is very slow on some of our mips hardware. However, it has the right
practical effect.

Signed-off-by: Simon McVittie <0e1aea601907c1a85c2dc96e5ea37e23c58d2e9b@debian.org>
Bug: https://bugs.debian.org/932678
Forwarded: no

endlessm/glib,endlessm/glib,endlessm/glib,endlessm/glib,endlessm/glib