fix(OpenTelemetry/Metric): use named argument for InMemoryExporter instanciation (#174)

Author: gaelreyrol

src/OpenTelemetry/Metric/MetricExporter/InMemoryMetricExporterFactory.php

@@ -22,6 +22,6 @@ public function createExporter(#[\SensitiveParameter] ExporterDsn $dsn, Exporter
     {
         assert($options instanceof MetricExporterOptions);
 
-        return new InMemoryExporter($options->getTemporality()->toData());
+        return new InMemoryExporter(temporality: $options->getTemporality()->toData());
     }
 }