Description of problem: Alternet Content Source do not verify the upstream url and it successsfully completes refresh task without any error or relative message. Version-Release number of selected component (if applicable): Satellite 6.13 How reproducible: Always Steps to Reproduce: 1. Install a Satellite 6.13. 2. Create test Alternate Content Source. Example: ~~~ URL: http:test Subpaths: test/repo1/,test/repo2/ ~~~ 3. It gets successfully refreshed without checking whether repositories present or not. Actual results: - It gets successfully refreshed without checking whether url is valid or not and repositories/subpaths do exists. - Dynflow output: ~~~ --- response: pulp_href: "/pulp/api/v3/acs/rpm/rpm/972b6753-6fcb-4083-bd57-a939b1797732/" pulp_created: !ruby/object:DateTime 2023-02-07 14:41:19.726859000 Z name: test-https://<capsule-hostname>:9090-9469 paths: - test/repo1/ - test/repo2/ remote: "/pulp/api/v3/remotes/rpm/rpm/fe946446-a47f-46f8-b8c3-886eee483e5c/" ~~~ Expected results: - Should show some error while refreshing or display some warning message like "404-Not found". Additional info: