Bug#1120413: scotch: error with no remote interface in ptscotch tests

[Drew Parsons]

Package: scotch
Followup-For: Bug #1120413
Control: severity -1 normal
Control: block -1 by 120481

PMIx upstream concluded the bug is ultimately in PRRTE 3.0.11, which
was included with OpenMPI 5.0.8.  It is fixed in PRRTE 3.0.12 and
included in OpenMPI 5.0.9. openmpi upgrade request filed Bug#1120481

This is not a bug in scotch itself, so downgrading bug severity to
normal.

Can close this bug once prrte is fixed and ptscotch tests are
reenabled (and passing).