ci(github): restore "print test failures" step name

ci(github): restore "print test failures" step name

As well as removing the explicit shell setting d8b21a0fe2 (CI: don't
explicitly pick "bash" shell outside of Windows, fix regression,
2022-12-07) also reverted the name of the print test failures step
introduced by 5aeb145780f (ci(github): bring back the 'print test
failures' step, 2022-06-08). This is unfortunate as 5aeb145780f added a
message to direct contributors to the "print test failures" step when a
test fails and that step is no-longer known by that name on the
non-windows ci jobs.

In principle we could update the message to print the correct name for
the step but then we'd have to deal with having two different names for
the same step on different jobs. It is simpler for the implementation
and contributors to use the same name for this step on all jobs.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>