Consider increasing default RAM resources on CryoCloud

[scottyhq]

Installing an additional package into the default environment (mamba install itables) on CryoCloud fails because the process is killed due to running out of memory (2GB). I suggest making the default at least 8GB, which is fairly standard for laptops these days cc @tsnow03

Channels:
 - conda-forge
 - defaults
Platform: linux-64
Collecting package metadata (repodata.json): done
Solving environment: - Killed

edit: I had to select the 8GB limit for installing another package, it is memory killed even with the 4GB limit: (Mem: 3.98 / 7.42 GB)

[yuvipanda]

https://github.com/2i2c-org/infrastructure/blob/46f1a89163ba5dd0ed9257b2069d229495e1d981/config/clusters/nasa-cryo/common.values.yaml#L144 this line can be moved to any of the other options! Make a pr whenever y'all have consensus?