Merge pull request #1864 from Trusted-AI/dependabot/pip/pytest-cov-approx-eq-4.0.0

Update pytest-cov requirement from ~=3.0.0 to ~=4.0.0

Author: beat-buesser

requirements_test.txt

@@ -55,7 +55,7 @@ pytest~=7.1.3
 pytest-flake8~=1.1.1
 flake8~=4.0.1
 pytest-mock~=3.9.0
-pytest-cov~=3.0.0
+pytest-cov~=4.0.0
 codecov~=2.1.12
 requests~=2.28.1