[client] Update dependency pytest-cov to v6

Co-authored-by: Romuald Lemesle <[email protected]>

Author: renovate[bot]

README.md

@@ -68,8 +68,16 @@ The standard `unittest` library is used for running the tests.
 $ python -m unittest
 ```
 
+## Code Coverage
+
+To run the tests and generate a code coverage report:
+
+```bash
+pytest --cov=. tests/
+```
+
 ## About
 
 OpenBAS is a product designed and developed by the company [Filigran](https://filigran.io).
 
-<a href="https://filigran.io" alt="Filigran"><img src="https://github.com/OpenBAS-Platform/openbas/raw/master/.github/img/logo_filigran.png" width="300" /></a>
+<a href="https://filigran.io" alt="Filigran"><img src="https://github.com/OpenBAS-Platform/openbas/raw/master/.github/img/logo_filigran.png" width="300" /></a>

test-requirements.txt

@@ -5,7 +5,7 @@ isort>=5.10
 pre-commit~=4.1
 pytest~=8.1
 pytest-cases~=3.6
-pytest-cov~=4.1
+pytest-cov~=6.1
 pytest_randomly~=3.8
 types-python-dateutil>=2.8
 types-pytz>=2021.3.5