deps: update pytest-cov requirement from <=6.0.0 to <=7.0.0

Updates the requirements on [pytest-cov](https://github.com/pytest-dev/pytest-cov) to permit the latest version.
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v1.0...v7.0.0)

---
updated-dependencies:
- dependency-name: pytest-cov
  dependency-version: 7.0.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pyproject.toml

@@ -67,7 +67,7 @@ dependencies = [
     "networkx>=2.3,<=3.4.2",
     "protobuf>=5.0.0,<6.0.0",
     "pytest<=8.4.2",
-    "pytest-cov<=6.0.0",
+    "pytest-cov<=7.0.0",
     "python-dotenv<=1.1.1",
     "PyYAML<=6.0.2",
     "qemu.qmp==0.0.3",