Update recipe.yml

Matplotlib, trajan, platformdirs, and pytest do not need to be in the released verion. Let's use this recipe.yml as the universal source of truth as we develop v4

Author: VeckoTheGecko

.github/ci/recipe.yaml

@@ -31,12 +31,8 @@ requirements:
     - python >=3.11
     - cftime >=1.6.3
     - dask >=2024.5.1
-    - matplotlib-base >=2.0.2
     - netcdf4 >=1.7.2
     - numpy >=2.1.0
-    - platformdirs
-    - pytest
-    - trajan
     - tqdm >=4.50.0
     - xarray >=2024.5.0
     - cf_xarray >=0.8.6