Changes

jobs/ttcn3: run ttcn3-msc-test earlier

It seems like various tests are failing from time to time due to the
builder having a too high load. As several ttcn3 testsuites run around 4
am already, move ttcn3-msc-test to 1 hour earlier where we don't have
anything currently.

Change-Id: I8eaf058f13f4175a458e9abe544bfb21ace481b7

jobs/ttcn3-testsuites.yml: add ttcn3-bts-test-io_uring

osmo-bts in theory can also benefit from io_uring, at least because
it can maintain multiple RTP connections for voice calls.  Let's
execute the respective testsuite with io_uring too.

Change-Id: I3af791103d863290a53c9ce2d1a8d1d9e42e91c7