Bump pytest from 6.2.3 to 6.2.5 (#1020)

Author: dependabot[bot]

requirements/requirements_dev.txt

@@ -11,7 +11,7 @@ invoke==1.5.0
 placebo==0.9.0
 pre-commit==2.13.0
 pylint==2.7.4
-pytest==6.2.3
+pytest==6.2.5
 pytest-black==0.3.12
 pytest-cov==2.12.1
 pytest-datadir==1.3.1