Temporary reduce code coverage to 95 percent

Coverage failures may hide other failing tests in the CI.
Configure coverage to fail under 95 percent during the
ongoing client-exploration.

Signed-off-by: Teodora Sechkova <tsechkova@vmware.com>

tox.ini

@@ -16,7 +16,7 @@ changedir = tests
 commands =
     python --version
     coverage run aggregate_tests.py
-    coverage report -m --fail-under 97
+    coverage report -m --fail-under 95
 
 deps =
     -r{toxinidir}/requirements-test.txt