Bump marshmallow from 3.21.2 to 3.21.3

Bumps [marshmallow](https://github.com/marshmallow-code/marshmallow) from 3.21.2 to 3.21.3.
- [Changelog](https://github.com/marshmallow-code/marshmallow/blob/dev/CHANGELOG.rst)
- [Commits](https://github.com/marshmallow-code/marshmallow/compare/3.21.2...3.21.3)

---
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 = "==22.0.0", extras = ["eventlet"]}
 iso8601 = "==2.1.0"
 jsonschema = {version = "==4.22.0", extras = ["format"]}
 lxml = "==5.2.2"
-marshmallow = "==3.21.2"
+marshmallow = "==3.21.3"
 marshmallow-sqlalchemy = "==1.0.0"
 newrelic = "*"
 notifications-python-client = "==9.1.0"