updates to namespace/objects notebook and updates to environment.yml

* remove vtk and pyvistas from requirements
* remove pinned python and flopy versions

Author: jlarsen-usgs

installation/environment.yml

@@ -4,7 +4,7 @@ channels:
   - nodefaults
 dependencies:
   # required
-  - python=3.12
+  - python
   - pip
 
   - numpy
@@ -36,14 +36,12 @@ dependencies:
   - uxarray
   - pyyaml
   - rtree
-  - pyvista
-  - vtk
   - imageio
   - requests
   - pytest
   - statsmodels
   - dataretrieval
-  - flopy=3.9
+  - flopy
   - gis-utils
   - sfrmaker
   - contextily