Merge pull request #328 from QGIS-Contribution/dependabot/pip/require…

…ments/pytest-cov-gte-3-and-lt-5.1

build(deps): update pytest-cov requirement from <4.2,>=3 to >=3,<5.1 in /requirements

requirements/testing.txt

@@ -1,6 +1,6 @@
 # Testing dependencies
 # --------------------
 
-pytest-cov>=3,<4.2
+pytest-cov>=3,<5.1
 pytest-qgis>=1.3,<2.1
 semver>=2.13,<2.14