Fix CYGNSS_L2_SURFACE_FLUX_V3.2 in l2ss-py

[jamesfwood]

Failing here because of time:

https://github.com/podaac/l2ss-py-autotest/pull/3395/checks?check_run_id=35398706926

its trying to find the lon lat times variable and it can't decode the times variable seems like its not standard
im just trying to open file and xarrays tries to decode the time

in function 'decode_cf_variables': Failed to decode variable 'solar_time': unable to decode time units 'seconds since 00:00:00' with 'the default calendar'. Try opening your dataset with decode_times=False or installing cftime if it is not installed.

Ask Jack if we should allow this collection to do temporal subset.