Correct gdpcir is now made up of 2 collections

[delgadom]

Tiny edit - GDPCIR group no longer has three collections, as the CC-BY-SA license has been changed to a CC-BY licenses and these groups were merged.

See also:

• https://github.com/microsoft/PlanetaryComputerDataCatalog/pull/438
• https://github.com/microsoft/planetary-computer-tasks/pull/213

Related PRs on ClimateImpactLab repo:

• https://github.com/ClimateImpactLab/downscaleCMIP6/pull/637
• https://github.com/ClimateImpactLab/downscaleCMIP6/issues/660

@TomAugspurger