RAP CONUS and AK crashing on extra APCP variable

[Brian-Jamison]

Starting at the 6hr forecast, the RAP CONUS and AK grib2 files store an extra APCP variable. This is a 3hr accumulation, and appears at 6hr, 9hr, etc. As a result, a "ValueError: the new name 'APCP_P8_L1_GLC0_acc' conflicts" occurs in xarray, and the run crashes at that point. This also results in a number of "re-runs" that also crash at that point, unnecessarily using resources.