Fix excel download URL for ERU Readiness

Author: frozenhelium

app/src/views/SurgeOverview/EmergencyResponseUnit/EmergencyResponseUnitReadiness/index.tsx

@@ -34,6 +34,7 @@ import useGlobalEnums from '#hooks/domain/useGlobalEnums';
 import useAlert from '#hooks/useAlert';
 import useFilterState from '#hooks/useFilterState';
 import { joinStrings } from '#utils/common';
+import { resolveUrl } from '#utils/resolveUrl';
 import {
     type GoApiResponse,
     useRequest,
@@ -191,7 +192,7 @@ function EmergencyResponseUnitReadiness() {
                 actions={(
                     <>
                         <Link
-                            href={`${api}/api/v2/export-eru-readiness`}
+                            href={resolveUrl(api, 'api/v2/export-eru-readiness')}
                             variant="secondary"
                             external
                         >