Add logging to StoreToZarr

[jbusecke]

#656
I also added the full target here, because that might be helpful to have?

[cisaacstern]

@jbusecke have you confirmed anecdotally by running this that the logs write what you expect/desire them to?

[jbusecke]

Hmmm not really. I havent run things on a PR branch in a bit lol. Let me check this, BRB

[jbusecke]

Testing over at leap-stc/cmip6-leap-feedstock#79

[jbusecke]

Hmmmm so over at leap-stc/cmip6-leap-feedstock#79 I specified to install -recipes from this branch, and the install seems to work.

But for e.g. one of the successful jobs im not able to find anything matching Storing Zarr with.

So either this does not work, or I am a moron with the logs (highly likely). @cisaacstern if you have a minute, could you take a stab at the logs (you should have access) and confirm my finding?

[moradology]

I'm curious about the way this was run. If it was done in a local runner with multi_processing, I'd expect logging to be swallowed on executor processes even if this is defined correctly. Either way, the logging is written correctly here and if there are more general logging difficulties we should address them elsewhere. Going to merge this in as it is incredibly unlikely to cause trouble for us