test_ukify: raise timeout

With a sufficiently large initrd, the tests take 25 s on my laptop.
Normally, they'd be quicker, but since we use what we find on the
system, we don't control this. Let's raise the timeout to reduce the
chances of a spurious failure.

(cherry picked from commit 6bc99ec)
(cherry picked from commit 2018cce)
(cherry picked from commit 9dd1267)

Author: keszybz

src/ukify/test/meson.build

@@ -3,5 +3,6 @@
 if want_ukify and want_tests != 'false'
    test('test-ukify',
         files('test_ukify.py'),
-        env : test_env)
+        env : test_env,
+        timeout : 120)
 endif