GetOrSet doesn't update expManager

[reitowo]

go-generics-cache/cache.go

Lines 235 to 245 in f567a86

	if !ok || item.Expired() {
	item := newItem(key, val, opts...)
	c.cache.Set(key, item)
	return val, false
	}
	return item.Value, true
	}
	// DeleteExpired all expired items from the cache.

GetOrSet doesn't respect expire setting and will not be removed even expired.