Bump datamodel-code-generator from 0.57.0 to 0.64.0

Bumps [datamodel-code-generator](https://github.com/koxudaxi/datamodel-code-generator) from 0.57.0 to 0.64.0.
- [Release notes](https://github.com/koxudaxi/datamodel-code-generator/releases)
- [Changelog](https://github.com/koxudaxi/datamodel-code-generator/blob/main/CHANGELOG.md)
- [Commits](koxudaxi/datamodel-code-generator@0.57.0...0.64.0)

---
updated-dependencies:
- dependency-name: datamodel-code-generator
  dependency-version: 0.64.0
  dependency-type: direct:development
...

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

Author: dependabot[bot]

pyproject.toml

@@ -103,7 +103,7 @@ docs = [
     # `griffe`; the old `griffe` distribution is the incompatible 1.x line.
     "griffelib==2.1.0",
 ]
-codegen = ["datamodel-code-generator==0.57.0"]
+codegen = ["datamodel-code-generator==0.64.0"]
 
 [build-system]
 requires = ["hatchling", "uv-dynamic-versioning"]