Update archive script to handle new ocean output

[kieranricardo]

This updates the archiving script to handle the new ocean output (single variable files).

Note that a typo in the suite cause the ocean files to be saved as om3_... in stead of cm3_..., to handle this om3 and cm3 are searched for in the file regex, and om3 is replaced with cm3 in the output filenames.

Example output here: /g/data/zv30/non-cmip/ACCESS-CM3/cm3-run-20-01-2026-om3-update