update NCDatasets syntax for v0.13

[juliasloan25]

As of NCDatasets.jl v0.13.0, the syntax ds["var"][:] is no longer supported, and should be replaced by Array(ds["var"]).

• see discussion here: .var[:] always returns a vector JuliaGeo/NCDatasets.jl#233

• see fix in RRTMGP.jl here: Change syntax to get NC data RRTMGP.jl#395

• note from discussion above (not sure if this applies in our case, but good to keep in mind):

Array(v_cf) is not equivalent to v_cf.var[:] even in the vector case, because Array(v_cf) does Missing and DateTime conversion etc. The equivalent would be Array(v_cf.var).

To Do

• wait for dependencies to update usage to 0.13
  • RRTMGP Change syntax to get NC data RRTMGP.jl#395
  • ClimaLSM fix NCDatasets, ClimaComms ClimaLand.jl#380
  • ClimaAtmos Update compatibility NCDatasets 0.13 ClimaAtmos.jl#2327
  • ClimaCore Bump NCDatasets to 0.13 in ClimaCoreTempestRemap ClimaCore.jl#1526
  • etc
• use updated syntax
• update NCDatasets compats to 0.13

[juliasloan25]

superseded by #521