Add datasets to obs4REF collection

## The problem
We need a way of distributing the obs data needed by the REF

## Definition of "done"
* [ ] obs4MIPs.DLR-BIRA.C3S-GTO-ECV-9-0.mon.toz.gn.v20231115
* [x] obs4MIPs.NASA-GSFC.GPCP-Monthly-3-2.mon.pr.gn.v20231205
* [ ] obs4MIPs.NASA-GSFC.GPCP-V2.3.atmos.mon.v20180519
* [ ] obs4MIPs.NASA-LaRC.CERES-EBAF-4-2.mon.rsdscs.gn.v20240513
* [ ] obs4MIPs.NASA-LaRC.CERES-EBAF-4-2.mon.rsutcs.gn.v20240513
* [ ] obs4MIPs.NASA-LaRC.CERES-EBAF-4-2.mon.rsut.gn.v20240513
* [ ] obs4MIPs.NASA-LaRC.CERES-EBAF-4-2.mon.rsus.gn.v20240513
* [ ] obs4MIPs.NASA-LaRC.CERES-EBAF-4-2.mon.rsdt.gn.v20240513
* [ ] obs4MIPs.NASA-LaRC.CERES-EBAF-4-2.mon.rldscs.gn.v20240513
* [ ] obs4MIPs.NASA-LaRC.CERES-EBAF-4-2.mon.rsds.gn.v20240513
* [ ] obs4MIPs.NASA-LaRC.CERES-EBAF-4-2.mon.rlds.gn.v20240513
* [ ] obs4MIPs.NASA-LaRC.CERES-EBAF-4-2.mon.rlutcs.gn.v20240513
* [ ] obs4MIPs.NASA-LaRC.CERES-EBAF-4-2.mon.rlut.gn.v20240513
* [ ] obs4MIPs.NASA-LaRC.CERES-EBAF-4-2.mon.rlus.gn.v20240513
* [ ] obs4MIPs.ECMWF.ERA-5.mon.uas.gn.v20250220
* [ ] obs4MIPs.ECMWF.ERA-5.mon.va.gn.v20250220
* [ ] obs4MIPs.ECMWF.ERA-5.mon.tas.gn.v20250220
* [ ] obs4MIPs.ECMWF.ERA-5.mon.ua.gn.v20250220
* [ ] obs4MIPs.ECMWF.ERA-5.mon.psl.gn.v20250220
* [ ] obs4MIPs.ECMWF.ERA-5.mon.ta.gn.v20250220
* [ ] obs4MIPs.ECMWF.ERA-5.mon.vas.gn.v20250220
* [ ] obs4MIPs.ECMWF.ERA-5.mon.zg.gn.v20250220
* [ ] obs4MIPs.ECMWF.ERA-5.mon.psl.gn.v20250220
* [x] obs4MIPs.ESSO.TropFlux-1-0.mon.hfls.gn.v20250415
* [x] obs4MIPs.ESSO.TropFlux-1-0.mon.hfns.gn.v20250415
* [ ] obs4MIPs.ESSO.TropFlux-1-0.mon.hfss.gn.v20250415
* [ ] obs4MIPs.ESSO.TropFlux-1-0.mon.huss.gn.v20250415
* [ ] obs4MIPs.ESSO.TropFlux-1-0.mon.rls.gn.v20250415
* [ ] obs4MIPs.ESSO.TropFlux-1-0.mon.rss.gn.v20250415
* [ ] obs4MIPs.ESSO.TropFlux-1-0.mon.sfcWind.gn.v20250415
* [x] obs4MIPs.ESSO.TropFlux-1-0.mon.tas.gn.v20250415
* [x] obs4MIPs.ESSO.TropFlux-1-0.mon.tauu.gn.v20250415
* [x] obs4MIPs.ESSO.TropFlux-1-0.mon.tauv.gn.v20250415
* [x] obs4MIPs.ESSO.TropFlux-1-0.mon.ts.gn.v20250415
* [x] obs4MIPs.MOHC.HadISST-1-1.mon.ts.gn.v20250415
* [x] obs4MIPs.NOAA-ESRL-PSD.20CR-V2.mon.psl.gn.v20250415
* [x] obs4MIPs.NOAA-ESRL-PSD.20CR-V2.mon.ts.gn.v20250415
* [x] * [ ] obs4MIPs.NOAA-ESRL-PSD.CMAP-V1902.mon.pr.gn.v20250415
* [x] obs4MIPs.CNES.AVISO-1-0.mon.zos.gn.v20180305

## Additional context