python: auto_approve_time should return int (not float)

9 jobs for number-dash-number-is-float-in-python3 in 6 minutes and 43 seconds (queued for 6 seconds)
Status Job ID Name Coverage
  Test
passed #234057
cppcheck

00:00:31

passed #234058
luacheck

00:00:31

passed #234055
system-tests

00:01:03

passed #234056
system-valgrind-tests

00:03:49

passed #234053
unit-tests

00:01:03

passed #237251
unit-valgrind-tests

00:02:53

passed #234060
unit-valgrind-tests

00:03:14

failed #234059
unit-valgrind-tests

00:01:31

failed #234054
unit-valgrind-tests

00:00:59