chore(deps): update dependency pytest-deadfixtures to v3 (#11)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pyproject.toml

@@ -13,7 +13,7 @@ dev = [
     "poethepoet>=0.39,<0.40",
     "pytest>=9.0.2,<10",
     "mypy>=1.11.2,<2",
-    "pytest-deadfixtures>=2.2.1,<3",
+    "pytest-deadfixtures>=3,<4",
     "coverage>=7.6.1,<8",
     "pytest-cov>=5.0.0",
     "ruff>=0.6.9",