Try using single = for conda environment.yml

Gives me a whole lot of bogus conflicts that
should not be conflicts, like

Package typing conflicts for:
bokeh=2.3 -> typing_extensions[version='>=3.7.4'] -> typing[version='>=3.7.4']
spacy=3.1 -> typing_extensions[version='>=3.7.4,<4.0.0.0'] -> typing[version='>=3.7.4']

deployments/datahub/images/default/environment.yml

@@ -1,44 +1,44 @@
 dependencies:
-- nodejs==15.*
-- pip==20.2.*
-- python==3.9.*
+- nodejs=15.*
+- pip=20.2.*
+- python=3.9.*
 
 # pymc3 needs this
-- mkl-service==2.4.*
+- mkl-service=2.4.*
 
 # Base scientific packages that other conda packages we install depend on
 # We don't want to have conda packages depend on pip packages if possible
-- numpy==1.21.*
-- matplotlib==3.4.*
-- scipy==1.7.*
-- ipympl==0.8.*
-- pandas==1.3.*
-- statsmodels==0.12.*
-- scikit-learn==0.24.*
-- seaborn==0.11.*
-- bokeh==2.3.*
-- decorator==5.0.*
-- networkx==2.6.*
-- spacy==3.1.*
-- nltk==3.6.*
+- numpy=1.21.*
+- matplotlib=3.4.*
+- scipy=1.7.*
+- ipympl=0.8.*
+- pandas=1.3.*
+- statsmodels=0.12.*
+- scikit-learn=0.24.*
+- seaborn=0.11.*
+- bokeh=2.3.*
+- decorator=5.0.*
+- networkx=2.6.*
+- spacy=3.1.*
+- nltk=3.6.*
 
 # data-x; DL
-- tensorflow==2.6.*
-- scikit-image==0.18.*
+- tensorflow=2.6.*
+- scikit-image=0.18.*
 
 # EPS88, data100
 # https://github.com/berkeley-dsep-infra/datahub/issues/1796
 # https://github.com/berkeley-dsep-infra/datahub/issues/2824
-- shapely==1.8.*
-- cartopy==0.20.*
+- shapely=1.8.*
+- cartopy=0.20.*
 # data100, geog88
 # https://github.com/berkeley-dsep-infra/datahub/issues/2838
-- geopandas==0.10.*
-- geopy==2.2.*
-- pysal==2.5.*
-- rtree==0.9.*
-- netcdf4==1.5.*
-- mplleaflet==0.0.5
+- geopandas=0.10.*
+- geopy=2.2.*
+- pysal=2.5.*
+- rtree=0.9.*
+- netcdf4=1.5.*
+- mplleaflet=0.0.5
 
 # ls 88-3; neuro
-- pillow==8.3.*
+- pillow=8.3.*