Bump marshmallow from 3.23.1 to 3.26.2

Bumps [marshmallow](https://github.com/marshmallow-code/marshmallow) from 3.23.1 to 3.26.2.
- [Changelog](https://github.com/marshmallow-code/marshmallow/blob/3.26.2/CHANGELOG.rst)
- [Commits](marshmallow-code/marshmallow@3.23.1...3.26.2)

---
updated-dependencies:
- dependency-name: marshmallow
  dependency-version: 3.26.2
  dependency-type: direct:development
...

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

Author: dependabot[bot]

requirements_dev.txt

@@ -36,7 +36,7 @@ jinja2==3.1.4
     # via sphinx
 markupsafe==3.0.2
     # via jinja2
-marshmallow==3.23.1
+marshmallow==3.26.2
     # via zocalo
 packaging==24.2
     # via