When the malloc for len_namespaces should fail namespaces
would be uninitialized and passed to free.

Signed-off-by: Eric Pouech <epouech@codeweavers.com>

Signed-off-by: Eric Pouech <epouech@codeweavers.com>

Wine-Bug: https://bugs.winehq.org//show_bug.cgi?id=55491

They are constantly failing on Gitlab, and may be caused various race
conditions around window focus, both in Wine and in Fvwm. It would be
nice to fix them but it's been going for many years now and unlikely to
be the case soon.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56119

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56168Signed-off-by: Eric Pouech <epouech@codeweavers.com>

This will now fail on older, unsupported versions, but the
test_monochrome_icon test would be pointless otherwise.

They most of the time let any result pass and defeat the purpose of
the test.

To avoid jobs with different compilers overwriting each other.

Partially reverts commit 67f2da2a which
broke ccache cache as the job configurations were overriding the default
cache configuration from .wine-build instead of extending it.

Fixes the test name passed to winetest.exe which is otherwise split
into a character array when there's a single line in the winetest.args
file, and then causes it to miss the test and always return success.