fix: reduce function for template by metric check

common/achievement/template.ts

@@ -48,7 +48,7 @@ async function getAchievementTemplates(select: TemplateSelectEnum): Promise<Map<
 async function getTemplatesByMetrics(metricsForAction: Metric[]) {
     const templatesByMetric = await getAchievementTemplates(TemplateSelectEnum.BY_METRIC);
     const templateKeys = templatesByMetric ? Array.from(templatesByMetric.keys()) : [];
-    if (templateKeys.map((key) => templatesByMetric[key]).reduce((all, temp) => [...all, ...temp], 0).length === 0) {
+    if (templateKeys.map((key) => templatesByMetric[key]).reduce((all, temp) => all.concat(temp), []).length === 0) {
         logger.debug(`No achievement templates were found in the database for the metrics: ${metricsForAction.map((m) => `${m.metricName}, `)}`);
         return [];
     }