fix: bump ipywidgets from 8.1.5 to 8.1.6

Bumps [ipywidgets](https://github.com/jupyter-widgets/ipywidgets) from 8.1.5 to 8.1.6.
- [Release notes](https://github.com/jupyter-widgets/ipywidgets/releases)
- [Commits](jupyter-widgets/ipywidgets@8.1.5...8.1.6)

---
updated-dependencies:
- dependency-name: ipywidgets
  dependency-version: 8.1.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -33,7 +33,7 @@ psycopg2-binary==2.9.10
 # Jupyter Notebook Libraries:
 jupyter==1.1.1
 notebook==7.3.3
-ipywidgets==8.1.5
+ipywidgets==8.1.6
 
 # Other Useful Libraries:
 joblib==1.4.2