unpin most packages

Author: basnijholt

docs/environment.yml

@@ -5,19 +5,17 @@ channels:
 
 dependencies:
   - python
-  - sortedcollections=1.2.1
-  - scikit-optimize=0.8.1
-  - scikit-learn=0.23.2
-  - scipy=1.5.2
+  - sortedcollections
+  - scikit-optimize
+  - scikit-learn
+  - scipy
   - holoviews=1.13.3
   - bokeh=2.2.1
-  - plotly=4.10.0
-  - ipywidgets=7.5.1
-  - jupyter_sphinx=0.3.1
-  - atomicwrites=1.4.0
-  - sphinx_fontawesome=0.0.6
-  - sphinx=3.2.1
-  - m2r2=0.2.7
-  - pillow=8.0.0 # pin because bokeh incompatibility
-  - pip:
-    - sphinx_rtd_theme
+  - plotly
+  - ipywidgets
+  - jupyter_sphinx
+  - atomicwrites
+  - sphinx_fontawesome
+  - sphinx
+  - m2r2
+  - sphinx_rtd_theme