svupdater: fix - pyuci expects str, not int

8 jobs for python-fixes in 5 minutes and 22 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #226912
cppcheck

00:00:29

passed #226913
luacheck

00:00:29

passed #226910
system-tests

00:01:13

passed #226911
system-valgrind-tests

00:03:07

passed #226908
unit-tests

00:01:11

passed #226915
unit-valgrind-tests

00:02:14

failed #226914
unit-valgrind-tests

00:01:04

failed #226909
unit-valgrind-tests

00:01:24