Update tests to retry on specific exceptions

.github/workflows/test_package.yaml

@@ -34,4 +34,4 @@ jobs:
           SSO_CLIENT_SECRET: ${{ secrets.SSO_CLIENT_SECRET }}
           ENVIRONMENT: ${{ vars.ENVIRONMENT }}
         run: |
-          pytest tests -s
+          pytest tests -s --retries 2

conftest.py

@@ -0,0 +1,10 @@
+from requests.exceptions import ChunkedEncodingError
+
+
+def pytest_set_filtered_exceptions():
+    """
+    pytest-retry: Any test will be retried if it fails due to ChunkedEncodingError,
+    which occurs due to runregistry not being able to serve many hardcore requests
+    at the same time.
+    """
+    return [ChunkedEncodingError]

testing-requirements.txt

@@ -1,4 +1,5 @@
 pytest>=3.6
+pytest-retry
 pytest-cov
 codecov
 -e .