Use skip instead of conditional yield for ci check

Author: c0llab0rat0r

test/functional/conftest.py

@@ -60,13 +60,11 @@ def _running_in_travis_ci() -> bool:
 
 
 @pytest.fixture(scope='session')
-def ipfs_service_auth() -> ty.Generator[ty.Tuple[str, str], None, None]:
-	if not _running_in_travis_ci():
-		# Docker pull hits docker hub rate limits when running on Travis CI; avoiding the
-		# rate limit requires a Docker Hub account.
-		#
-		# Conditionally skip all tests using the docker-compose container if running in CI.
-		yield 'TheUser', 'ThePassword'
+def ipfs_service_auth() -> ty.Tuple[str, str]:
+	if _running_in_travis_ci():
+		pytest.skip('Docker hub reports rate limit errors on pulls from Travis CI servers')
+
+	return 'TheUser', 'ThePassword'
 
 
 @pytest.fixture(scope="function")