simplify conda env; use in readthedocs

Author: berombau

.readthedocs.yaml

@@ -3,7 +3,11 @@ version: 2
 build:
   os: ubuntu-20.04
   tools:
-    python: "3.10"
+    python: "mambaforge-22.9"
+
+conda:
+  environment: env.yaml
+
 sphinx:
   configuration: docs/conf.py
   # disable this for more lenient docs builds

env.yaml

@@ -2,34 +2,5 @@ name: flowsom
 channels:
   - conda-forge
 dependencies:
-  - python<3.11
+  - python=3.12
   - pip
-  - numpy
-  - matplotlib
-  - pandas
-  - scipy
-  - scikit-learn
-  - python-igraph
-  - numba
-  - seaborn
-  - session-info
-  # cytometry
-  - scanpy
-  - mudata
-  # tests
-  - pytest
-  - pip:
-      # cytometry
-      - pytometry
-      - readfcs
-      # documentation
-      - docutils>=0.8,!=0.18.*,!=0.19.*
-      - sphinx>=4
-      - sphinx-book-theme>=1.0.0
-      - myst-nb
-      - sphinxcontrib-bibtex>=1.0.0
-      - sphinx-autodoc-typehints
-      - sphinxext-opengraph
-      - ipykernel
-      - ipython
-      - sphinx-copybutton