fix/condition for parallelism

exporter/prometheusremotewriteexporter/config.go

@@ -90,7 +90,7 @@ var _ component.Config = (*Config)(nil)
 
 // Validate checks if the exporter configuration is valid
 func (cfg *Config) Validate() error {
-	if cfg.MaxBatchRequestParallelism <= 0 {
+	if cfg.MaxBatchRequestParallelism <= 1 {
 		return fmt.Errorf("max_batch_request_parallelism can't be set to below 1")
 	}