[lint] minor fixes

Author: capcom6

pkg/cache/memory_bench_test.go

@@ -122,7 +122,7 @@ func BenchmarkMemoryCache_Cleanup(b *testing.B) {
 	ctx := context.Background()
 
 	// Pre-populate cache with many items
-	for i := 0; i < 1000; i++ {
+	for i := range 1000 {
 		key := "item-" + strconv.Itoa(i)
 		value := "value-" + strconv.Itoa(i)
 		cache.Set(ctx, key, []byte(value))

pkg/cache/memory_concurrency_test.go

@@ -387,7 +387,7 @@ func TestMemoryCache_ConcurrentGetAndDelete(t *testing.T) {
 	wg.Wait()
 
 	// All items should be deleted
-	for i := 0; i < numGoroutines*attemptsPerGoroutine; i++ {
+	for i := range numGoroutines * attemptsPerGoroutine {
 		key := "item-" + strconv.Itoa(i)
 		_, err := c.Get(ctx, key)
 		if !errors.Is(err, cache.ErrKeyNotFound) {