fix: tox.ini

Author: evakravi

tox.ini

@@ -69,7 +69,7 @@ passenv =
 commands =
     python -c "import os; os.system('install-custom-pkgs --install-boto-wheels')"
     pytest --cov=sagemaker --cov-append {posargs}
-    {env:IGNORE_COVERAGE:} coverage report -i
+    {env:IGNORE_COVERAGE:} coverage report -i --fail-under=86
 deps = .[test]
 depends =
     {py36,py37,py38}: clean