selftests: rds: move test.py to TEST_FILES

The test.py should not be run separately. It should be run via run.sh,
which will do some sanity checks first. Move the test.py from TEST_PROGS
to TEST_FILES.

Reported-by: Maximilian Heyne <mheyne@amazon.de>
Closes: https://lore.kernel.org/netdev/20241122150129.GB18887@dev-dsk-mheyne-1b-55676e6a.eu-west-1.amazon.com


Fixes: 3ade6ce1 ("selftests: rds: add testing infrastructure")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Link: https://patch.msgid.link/20241124073243.847932-1-liuhangbin@gmail.com


Signed-off-by: Paolo Abeni <pabeni@redhat.com>