chore(env): nbqa black. pinned versions not needed.

Author: TomMonks

environment.yaml

@@ -2,11 +2,13 @@ name: template-des
 channels:
   - conda-forge
 dependencies:
+  - black
   - flake8=7.1.1
   - ipykernel=6.29.5
   - jinja2=3.1.4
   - joblib=1.4.2
   - nbformat=5.10.4
+  - nbqa
   - numpy=2.1.3
   - pandas=2.2.3
   - pip=24.3.1