fix: Global Default Region and Account not set in certain metrics (#615)

Adds them to the metric in adaptMetric if they are present in
globalDefault

---

_By submitting this pull request, I confirm that my contribution is made
under the terms of the Apache-2.0 license_

Author: umardab-amzn

lib/common/metric/MetricFactory.ts

@@ -229,6 +229,14 @@ export class MetricFactory {
    * @param metric metric to be adapted
    */
   adaptMetric(metric: MetricWithAlarmSupport): MetricWithAlarmSupport {
+    if (this.globalDefaults.region) {
+      metric = metric.with({ region: this.globalDefaults.region });
+    }
+
+    if (this.globalDefaults.account) {
+      metric = metric.with({ account: this.globalDefaults.account });
+    }
+
     return metric.with({
       period: this.globalDefaults.period ?? DefaultMetricPeriod,
     });