Add recipe for seasonal cycle of Arctic/Antarctic sea ice extent (REF)#3891

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axel-lauer wants to merge 2 commits intomainfrom ref_sea_ice_extent

+102

Commits on Nov 27, 2024

added REF recipe for seasonal cycle of NH sea ice extent
axel-lauer
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Commits on Jan 29, 2025

cleaned up recipe_ref_siextent_seasonal.yml
axel-lauer
committed