chore(deps): update dependency coverage to v7.15.0 (#455)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

requirements-test.txt

@@ -1,3 +1,3 @@
 -r requirements.txt
-coverage==7.14.3
+coverage==7.15.0
 django-debug-toolbar==7.0.0