Bump ipython from 7.33.0 to 9.6.0

Bumps [ipython](https://github.com/ipython/ipython) from 7.33.0 to 9.6.0.
- [Release notes](https://github.com/ipython/ipython/releases)
- [Commits](ipython/ipython@7.33.0...9.6.0)

---
updated-dependencies:
- dependency-name: ipython
  dependency-version: 9.6.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements/base.txt

@@ -9,7 +9,7 @@ django-ratelimit-backend==2.0
 django-recaptcha==4.1.0
 django-taggit==5.0.1
 django-tailwind==4.0.1
-ipython==7.33.0
+ipython==9.6.0
 Markdown==3.4.4
 Pillow==12.0.0
 Pygments==2.19.2