support/testing: TestSWIPL: increase timeout value

The swipl runtime test is unreliable, depending on the execution speed
of its runner or local host.

Running on a build server, the last test resolve the sudoku in
30sec while the timeout is 10sec.

  # time swipl -g top -t halt /root/sudoku.pl
  Sudoku solution:
  [9, 8, 7, 6, 5, 4, 3, 2, 1].
  [2, 4, 6, 1, 7, 3, 9, 8, 5].
  [3, 5, 1, 9, 2, 8, 7, 4, 6].
  [1, 2, 8, 5, 3, 7, 6, 9, 4].
  [6, 3, 4, 8, 9, 2, 1, 5, 7].
  [7, 9, 5, 4, 6, 1, 8, 3, 2].
  [5, 1, 9, 2, 8, 6, 4, 7, 3].
  [4, 7, 2, 3, 1, 9, 5, 6, 8].
  [8, 6, 3, 7, 4, 5, 2, 1, 9].
  real	0m 28.53s
  user	0m 27.99s
  sys	0m 0.51s

Increase the timout to 120sec.

Note: On Gitlab-CI, every emulator timeout are increased by a factor 10
to avoid sporadic failures in elastic runners.

https://gitlab.com/buildroot.org/buildroot/-/blame/2025.08-rc3/support/misc/gitlab-ci.yml.in?ref_type=tags#L101

Cc: Julien Olivain <ju.o@free.fr>
Signed-off-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Julien Olivain <ju.o@free.fr>
(cherry picked from commit dac94834cc)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>

support/testing/tests/package/test_swipl.py

@@ -43,4 +43,4 @@ class TestSWIPL(infra.basetest.BRTest):
 
         # Run a more complex logic program (solve a sudoku).
         cmd = "swipl -g top -t halt /root/sudoku.pl"
-        self.assertRunOk(cmd, timeout=10)
+        self.assertRunOk(cmd, timeout=120)