fix(alerting): Alphabetically sort Matrix provider

alerting/config.go

@@ -87,6 +87,12 @@ func (config Config) GetAlertingProviderByAlertType(alertType alert.Type) provid
 			return nil
 		}
 		return config.GoogleChat
+	case alert.TypeMatrix:
+		if config.Matrix == nil {
+			// Since we're returning an interface, we need to explicitly return nil, even if the provider itself is nil
+			return nil
+		}
+		return config.Matrix
 	case alert.TypeMattermost:
 		if config.Mattermost == nil {
 			// Since we're returning an interface, we need to explicitly return nil, even if the provider itself is nil
@@ -135,12 +141,6 @@ func (config Config) GetAlertingProviderByAlertType(alertType alert.Type) provid
 			return nil
 		}
 		return config.Twilio
-	case alert.TypeMatrix:
-		if config.Matrix == nil {
-			// Since we're returning an interface, we need to explicitly return nil, even if the provider itself is nil
-			return nil
-		}
-		return config.Matrix
 	}
 	return nil
 }

alerting/provider/provider.go

@@ -58,6 +58,7 @@ var (
 	_ AlertProvider = (*discord.AlertProvider)(nil)
 	_ AlertProvider = (*email.AlertProvider)(nil)
 	_ AlertProvider = (*googlechat.AlertProvider)(nil)
+	_ AlertProvider = (*matrix.AlertProvider)(nil)
 	_ AlertProvider = (*mattermost.AlertProvider)(nil)
 	_ AlertProvider = (*messagebird.AlertProvider)(nil)
 	_ AlertProvider = (*opsgenie.AlertProvider)(nil)
@@ -66,5 +67,4 @@ var (
 	_ AlertProvider = (*teams.AlertProvider)(nil)
 	_ AlertProvider = (*telegram.AlertProvider)(nil)
 	_ AlertProvider = (*twilio.AlertProvider)(nil)
-	_ AlertProvider = (*matrix.AlertProvider)(nil)
 )