Bump marshmallow from 3.25.1 to 3.26.1

Bumps [marshmallow](https://github.com/marshmallow-code/marshmallow) from 3.25.1 to 3.26.1.
- [Changelog](https://github.com/marshmallow-code/marshmallow/blob/dev/CHANGELOG.rst)
- [Commits](marshmallow-code/marshmallow@3.25.1...3.26.1)

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

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

Author: dependabot[bot]

Diff for: Pipfile

@@ -6,7 +6,7 @@ name = "pypi"
 [packages]
 cryptography = "==44.0.2"
 Flask = "==3.1.0"
-marshmallow = "==3.25.1"
+marshmallow = "==3.26.1"
 requests = "==2.32.3"
 PyJWT = "==2.6.0"