⬆ Update internal dependency pytest-cov requirement from <4.0.0,>=2.1…

…2.0 to >=2.12.0,<5.0.0 (#5539)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Sebastián Ramírez <tiangolo@gmail.com>

pyproject.toml

@@ -50,7 +50,7 @@ Documentation = "https://fastapi.tiangolo.com/"
 [project.optional-dependencies]
 test = [
     "pytest >=7.1.3,<8.0.0",
-    "pytest-cov >=2.12.0,<4.0.0",
+    "pytest-cov >=2.12.0,<5.0.0",
     "mypy ==0.982",
     "flake8 >=3.8.3,<6.0.0",
     "black == 22.8.0",