Update dependency pytest-asyncio to v1.2.0 (#492)

* Update dependency pytest-asyncio to v1.2.0

* don't stop the event loop between test

set the loop_scope to session for async tests

* remove loop_scope="session"

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Stefan Allius <stefan.allius@t-online.de>

app/tests/test_server.py

@@ -186,7 +186,7 @@ class TestHypercornLogHndl:
 
 
 class TestApp:
-    @pytest.mark.asyncio
+    @pytest.mark.asyncio(loop_scope="session")
     async def test_ready(self):
         """Test the ready route."""
 
@@ -204,7 +204,7 @@ class TestApp:
         result = await response.get_data()
         assert result == b"Is ready"
 
-    @pytest.mark.asyncio
+    @pytest.mark.asyncio(loop_scope="session")
     async def test_healthy(self):
         """Test the healthy route."""
         reader = FakeReader()
@@ -225,7 +225,7 @@ class TestApp:
             result = await response.get_data()
             assert result == b"I'm fine"
 
-    @pytest.mark.asyncio
+    @pytest.mark.asyncio(loop_scope="session")
     async def test_unhealthy(self, monkeypatch, caplog):
         """Test the healthy route."""
         def result_false(self):