zoltan/tria_zoltan_01: Always run with mpirun annotation to avoid race condition

Closes #5773

diff --git a/tests/zoltan/tria_zoltan_01.output b/tests/zoltan/tria_zoltan_01.mpirun=1.output
similarity index 100%
rename from tests/zoltan/tria_zoltan_01.output
rename to tests/zoltan/tria_zoltan_01.mpirun=1.output