SortedResourcesFactoryBean does not accept non-existent resources anymore #35895
Description
It turns out that PR #35687 causes a regression when non-existent resources are specified, leading to early failure. Since existing third-party code relies on late/conditional failure there (#35687 (comment)), we should make this lenient and accept non-existent resources still, simply adding them at the end of the scripts list (since we cannot properly sort them).