fix: Adjust the linting issues

Author: ZPascal

grafana_api/alerting.py

@@ -70,7 +70,7 @@ def create_or_update_alertmanager_alerts(
             None
         """
 
-        if len(datasource_uid) != 0and alerts != list():
+        if len(datasource_uid) != 0 and alerts != list():
             alerts_json_list: list = list()
 
             for alert in alerts:
@@ -931,7 +931,7 @@ def test_backtest_rule(self, condition: str, data_query: list) -> dict:
                 )
 
             api_call: dict = Api(self.grafana_api_model).call_the_api(
-                f"/api/v1/rule/backtest",
+                "/api/v1/rule/backtest",
                 RequestsMethods.POST,
                 json.dumps(
                     {

tests/unittests/test_alerting.py

@@ -753,7 +753,7 @@ def test_test_backtest_rule_no_condition(self):
         alerting: Alerting = Alerting(grafana_api_model=model)
 
         with self.assertRaises(ValueError):
-            alerting.test_backtest_rule("",  list())
+            alerting.test_backtest_rule("", list())
 
     @patch("grafana_api.api.Api.call_the_api")
     def test_test_recipient_rule_test_not_possible(self, call_the_api_mock):