Bump ipykernel from 6.29.2 to 6.29.3

Bumps [ipykernel](https://github.com/ipython/ipykernel) from 6.29.2 to 6.29.3.
- [Release notes](https://github.com/ipython/ipykernel/releases)
- [Changelog](https://github.com/ipython/ipykernel/blob/main/CHANGELOG.md)
- [Commits](ipython/ipykernel@v6.29.2...v6.29.3)

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

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

requirements.txt

@@ -26,7 +26,7 @@ h11==0.14.0
 httpcore==1.0.4
 httpx==0.27.0
 idna==3.6
-ipykernel==6.29.2
+ipykernel==6.29.3
 ipython==8.22.1
 ipywidgets==8.1.2
 isoduration==20.11.0