chore(deps): update dependency pytest-cov to v7

Author: renovate[bot]

pyproject.toml

@@ -46,7 +46,7 @@ dev = [
   "array-api-strict>=2.3.1",
   "attrs>=25.3.0",
   "pytest>=8,<9",
-  "pytest-cov>=6,<7",
+  "pytest-cov>=7,<8",
   "rich>=14.0.0",
   "ruff>=0.11.13",
   "typer>=0.16.0",