Bump marshmallow from 3.20.1 to 3.20.2

Bumps [marshmallow](https://github.com/marshmallow-code/marshmallow) from 3.20.1 to 3.20.2.
- [Changelog](https://github.com/marshmallow-code/marshmallow/blob/dev/CHANGELOG.rst)
- [Commits](https://github.com/marshmallow-code/marshmallow/compare/3.20.1...3.20.2)

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

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

pyproject.toml

@@ -36,7 +36,7 @@ gunicorn = {version = "==21.2.0", extras = ["eventlet"]}
 iso8601 = "==2.1.0"
 jsonschema = {version = "==4.20.0", extras = ["format"]}
 lxml = "==5.1.0"
-marshmallow = "==3.20.1"
+marshmallow = "==3.20.2"
 marshmallow-sqlalchemy = "==0.29.0"
 newrelic = "*"
 notifications-python-client = "==8.2.0"