Test data: 240km (v3)

240km test case for MPAS-A CI workflows.

v3 changes vs v2

Removed q2 (2-m water vapor mixing ratio diagnostic) from both
stream_list.atmosphere.output and stream_list.atmosphere.diagnostics.

The v2 240km init.nc / sfc_update.nc puts MPAS-A into a state where the
q2 diagnostic produces NaN at one or more cells in a 1-hour run with
default physics. NaN appears in q2 regardless of compiler (gcc, NVHPC),
precision (single), I/O backend (SMIOL, PIO), MPI rank count (1, 4), or
GPU offload (OpenACC on/off), so it is not a CI-side problem; it is a
real numerical defect in MPAS-A's q2 diagnostic on this particular
initial condition.

Because q2 is a diagnostic only (not used in the time integration),
removing it from the history stream is a safe workaround that lets BFB
tests run cleanly. The underlying defect has been reported upstream.

All other files (init.nc, sfc_update.nc, namelist.atmosphere, physics
tables, METIS partitions, streams.atmosphere, the other stream lists,
and the graph.info) are byte-identical to v2.

Inherited from v2

x1.10242.init.nc and x1.10242.sfc_update.nc were regenerated upstream
to address GPU ECT failures (config_start_time = 2014-09-10).