ci: Final run of integration tests does not fail CI if tests fail

[pdxjohnny]

dffml/.ci/run.sh

Lines 69 to 74 in 07e6082

	# Run with coverage
	"${PYTHON}" -m coverage run setup.py test 2>&1 | tee "${check_skips}"
	"${PYTHON}" -m coverage report -m
	# Fail if any tests were skipped
	grep -v -q -E '(skipped=.*)' "${check_skips}"

This is the final run of the CI tests for the main package (dffml, the tests in tests/)

It's meant to ensure that no integration tests are skipped. However, it forgets to check if any tests errored. We need the grep to exit non-zero if there were any errors.