Add new "use_all_labels_as_dimensions" flag to prometheus emf exporter

Author: TravisStark

translator/translate/otel/exporter/awsemf/awsemf_default_prometheus.yaml

@@ -5,4 +5,5 @@ detailed_metrics: false
 dimension_rollup_option: NoDimensionRollup
 use_all_labels_as_dimensions: true
 version: "0"
-retain_initial_value_of_delta_metric: false
+retain_initial_value_of_delta_metric: false
+use_all_labels_as_dimensions: true