feat(fronius): Add logs for http_requests

Author: Xavier Berger

solar_router/power_meter_fronius.yaml

@@ -39,10 +39,17 @@ script:
           then:
             - http_request.get:
                 url: http://${power_meter_ip_address}/solar_api/v1/GetMeterRealtimeData.cgi
+                headers:
+                  Content-Type: application/json
                 capture_response: true
                 max_response_buffer_size: 4096
                 on_response:
                   then:
+                    - logger.log:
+                        format: 'Response status: %d, Duration: %u ms'
+                        args:
+                          - response->status_code
+                          - response->duration_ms
                     - lambda: |-
                         json::parse_json(body, [](JsonObject root) -> bool {
                           id(real_power).publish_state(root["Body"]["Data"]["0"]["PowerReal_P_Sum"].as< float >());