Fix passing revalidateBefore option when calling cacheResponse to ensure these go through background revalidation (#2342)

src/lib/cache/cache.ts

@@ -202,7 +202,7 @@ export function cache<Args extends any[], Result>(
 
             if (savedEntry.meta.revalidatesAt && savedEntry.meta.revalidatesAt < Date.now()) {
                 // Revalidate in the background
-                waitUntil(revalidate(key, undefined, ...args));
+                await waitUntil(revalidate(key, undefined, ...args));
             }
 
             return savedEntry.data;

src/lib/cache/http.ts

@@ -50,6 +50,7 @@ export function cacheResponse<Result, DefaultData = Result>(
     return {
         ttl: defaultEntry.ttl ?? parsed.ttl,
         tags: [...(defaultEntry.tags ?? []), ...parsed.tags],
+        revalidateBefore: defaultEntry.revalidateBefore,
         // @ts-ignore
         data: defaultEntry.data ?? response.data,
     };