⬆ Bump mypy from 1.19.1 to 1.20.0

Bumps [mypy](https://github.com/python/mypy) from 1.19.1 to 1.20.0.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.19.1...v1.20.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 1.20.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pyproject.toml

@@ -67,7 +67,7 @@ github-actions = [
 tests = [
     "coverage[toml]>=6.2,<8.0",
     "fastapi>=0.128.0",
-    "mypy==1.19.1",
+    "mypy==1.20.0",
     "pytest>=7.4.0,<10.0.0",
     "ruff==0.15.8",
     "uvicorn>=0.39.0",