Bump notebook from 6.4.11 to 6.4.12

Bumps [notebook](http://jupyter.org) from 6.4.11 to 6.4.12.

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

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

Author: dependabot[bot]

requirements.txt

@@ -52,7 +52,7 @@ nbclient==0.6.2
 nbconvert==6.5.0
 nbformat==5.4.0
 nest-asyncio==1.5.5
-notebook==6.4.11
+notebook==6.4.12
 numpy==1.22.3
 oauthlib==3.2.0
 packaging==21.3