Feature/send validation emails

Send out notification emails for all tasks that have failed in the last hour. Add running this task at an hourly schedule

test/workflows/conftest.py

-import pytest
-from urllib3_mock import Responses
-
-
-@pytest.fixture(autouse=True)
-def responses():
-    responses_mock = Responses("requests.packages.urllib3")
-
-    def _find_request(call):
-        mock_url = responses_mock._find_match(call.request)  # noqa: SLF001
-        if not mock_url:
-            pytest.fail(f"Call not mocked: {call.request}")
-        return mock_url
-
-    def _to_tuple(url_mock):
-        return url_mock["url"], url_mock["method"], url_mock["match_querystring"]
-
-    with responses_mock:
-        yield responses_mock
-
-        mocked_urls = map(_to_tuple, responses_mock._urls)  # noqa: SLF001
-        used_urls = map(_to_tuple, map(_find_request, responses_mock.calls))
-        not_used = set(mocked_urls) - set(used_urls)
-        if not_used:
-            pytest.fail(f"Found unused responses mocks: {not_used}", pytrace=False)