Update dependency pytest-cov to v7

Author: renovate[bot]

pyproject.toml

@@ -52,7 +52,7 @@ dev = [
     "pre-commit>=4.0.1,<5",
     "pylint~=3.0",
     "pytest>=8.0.0,<9",
-    "pytest-cov>=6.0.0,<7",
+    "pytest-cov>=7,<8",
     "pytest-mock>=3.8.2,<4",
     "python-dotenv>=1.0.0,<2",
     "requests-toolbelt>=1.0.0,<2",