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_proxy.py

@@ -59,7 +59,7 @@ def config_conn(test_hostname, test_port):
                         }
     }
 
-@pytest.mark.asyncio
+@pytest.mark.asyncio(loop_scope="session")
 async def test_inverter_cb(config_conn):
     _ = config_conn
 
@@ -72,7 +72,7 @@ async def test_inverter_cb(config_conn):
         await Proxy._cb_mqtt_is_up()
         spy.assert_called_once()
 
-@pytest.mark.asyncio
+@pytest.mark.asyncio(loop_scope="session")
 async def test_mqtt_is_up(config_conn):
     _ = config_conn
 
@@ -81,7 +81,7 @@ async def test_mqtt_is_up(config_conn):
         await Proxy._cb_mqtt_is_up()
         spy.assert_called()
 
-@pytest.mark.asyncio
+@pytest.mark.asyncio(loop_scope="session")
 async def test_mqtt_proxy_statt_invalid(config_conn):
     _ = config_conn