fix: improve handling of ADC output for better logging and parsing

Author: dspo

internal/provider/adc/executor.go

@@ -112,9 +112,9 @@ func (e *DefaultADCExecutor) buildCmdError(runErr error, stdout, stderr []byte)
 
 func (e *DefaultADCExecutor) handleOutput(output []byte) error {
 	var result adctypes.SyncResult
-	if index := strings.IndexByte(string(output), '{'); index > 0 {
-		log.Warnf("extra output: %s", string(output[:index]))
-		output = output[index:]
+	log.Debugf("adc output: %s", string(output))
+	if lines := bytes.Split(output, []byte{'\n'}); len(lines) > 0 {
+		output = lines[len(lines)-1]
 	}
 	if err := json.Unmarshal(output, &result); err != nil {
 		log.Errorw("failed to unmarshal adc output",