build(deps-dev): bump mypy from 1.15.0 to 1.16.0

Bumps [mypy](https://github.com/python/mypy) from 1.15.0 to 1.16.0.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.15.0...v1.16.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 1.16.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

poetry.lock

@@ -23,7 +23,7 @@ Bugtracker = "https://github.com/Paul-B98/python-project-template"  # TODO
 python = "^3.13"
 
 [tool.poetry.group.dev.dependencies]
-mypy = "^1.15.0"
+mypy = "^1.16.0"
 pytest = "^8.3.5"
 coverage = "^7.8.2"
 pytest-cov = "^6.1.1"