Updated XArray-to-Zarr parameters.
Updated XArray-to-Zarr parameters.

- Updated the CLI arguments to get the ops right for the conversion
- Added a 120-second timeout to the lock to fail on a deadlock.
- Set PGF log traces to the DEBUG level.

Change-Id: I211f2b17263a87d3cc8b22c897f06f970a5d648d

google-research/ARCO-ERA5