Update mpas.gis1to10kmR2 mesh to include subglacial runoff field

The facemelting parameterization requires a subglacial runoff field as
an input.  Eventually, we may have this calculated prognostically in
E3SM from MALI and/or ELM, but that is not planned for the near-term.
Until then, a reasonable approximation is to use a constant historical
climatological field.

This commit updates the mpas.gis1to10kmR2 input file to include a
ismip6Runoff field provided by ISMIP6.  The field used is a 1995-2014
mean from the MIROC5 model, which was bias-corrected to match MAR over
that period.  See www.the-cryosphere.net/14/985/2020/ Fig. 2 and related
text for details.

components/mpas-albany-landice/cime_config/buildnml

@@ -78,7 +78,7 @@ def buildnml(case, caseroot, compname):
         decomp_date += '051920'
         decomp_prefix += 'mpasli.graph.info.'
     elif glc_grid == 'mpas.gis1to10kmR2':
-        grid_date += '20230202'
+        grid_date += '20240513'
         grid_prefix += 'gis_1to10km_r02'
         decomp_date += '020223'
         decomp_prefix += 'mpasli.graph.info.'