Update nbconvert requirement from ~=7.2.1 to ~=7.2.2

Updates the requirements on [nbconvert](https://github.com/jupyter/nbconvert) to permit the latest version.
- [Release notes](https://github.com/jupyter/nbconvert/releases)
- [Changelog](https://github.com/jupyter/nbconvert/blob/main/CHANGELOG.md)
- [Commits](jupyter/nbconvert@v7.2.1...v7.2.2)

---
updated-dependencies:
- dependency-name: nbconvert
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -69,7 +69,7 @@ msal-extensions~=1.0.0
 mypy==0.982
 mypy-extensions~=0.4.3
 nbclient~=0.7.0
-nbconvert~=7.2.1
+nbconvert~=7.2.2
 nbformat~=5.7.0
 nbsphinx~=0.8.9
 nest-asyncio~=1.5.6