Bump mistune from 3.1.3 to 3.2.1 in /ai/gen-ai-agents/travel-agent/files

Bumps [mistune](https://github.com/lepture/mistune) from 3.1.3 to 3.2.1.
- [Release notes](https://github.com/lepture/mistune/releases)
- [Changelog](https://github.com/lepture/mistune/blob/main/docs/changes.rst)
- [Commits](lepture/mistune@v3.1.3...v3.2.1)

---
updated-dependencies:
- dependency-name: mistune
  dependency-version: 3.2.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

ai/gen-ai-agents/travel-agent/files/requirements.txt

@@ -86,7 +86,7 @@ marshmallow==3.26.2
 matplotlib==3.10.3
 matplotlib-inline==0.1.7
 mccabe==0.7.0
-mistune==3.1.3
+mistune==3.2.1
 multidict==6.4.3
 mypy_extensions==1.1.0
 narwhals==1.40.0