conform to new eslint rules

scripts/core/utils.ts

@@ -88,7 +88,7 @@ export async function loadIssues(props?: { labels: string[] | string }) {
   if (props && props.labels) {
     labels = Array.isArray(props.labels) ? props.labels.join(',') : props.labels
   }
-  let issues: object[] = []
+  let issues: object[]
   if (TESTING) {
     issues = (await import('../../tests/__data__/input/sites_update/issues.mjs')).default
   } else {