dep updates (Atmos v0.19.2, LSM v0.6.0)

[juliasloan25]

Purpose

update to ClimaAtmos v0.19.2, ClimaLSM v0.6.0

replaces #566

To-do

• update dependencies
• change bucket precip sign for new convention in Sign convention on precip and melt flux ClimaLand.jl#445:

  • Conform to agreed upon convention that fluxes are positive if towards atmos and negative if towards ground.
    Therefore, precipitation should be negative and snow melt should be negative (corresponds to an increase in the energy of snow, or a negative heat flux).

[LenkaNovak]

LGTM, but it looks like we're getting slabplanet non-conservation (e.g. see default slabplanet in Buildkite). This is persisting since #556. Just trying to figure out what's changed.

[LenkaNovak]

Running the interactive_debug seems to be conservative, which points to the current Buildkite tests being unstable (but not blowing up yet). I can fix this as part of #568