Combine the paths when they collide

[mackdk]

What does this PR change?

This PR changes how the paths from the credentials and from the repository are combined for PAYG. When the path collides in fact now we are generated the wrong path. This change ensure we do not duplicate the overlapping folders in the final url.

Port of https://github.com/SUSE/spacewalk/pull/22578

GUI diff

No difference.

• DONE

Documentation

• No documentation needed: only internal and user invisible changes

• DONE

Test coverage

• Unit tests were added

• DONE

Links

Fixes https://github.com/SUSE/spacewalk/issues/22552
Tracks https://github.com/SUSE/spacewalk/pull/22578

• DONE

Changelogs

Make sure the changelogs entries you are adding are compliant with https://github.com/uyuni-project/uyuni/wiki/Contributing#changelogs and https://github.com/uyuni-project/uyuni/wiki/Contributing#uyuni-projectuyuni-repository

If you don't need a changelog check, please mark this checkbox:

• No changelog needed

If you uncheck the checkbox after the PR is created, you will need to re-run changelog_test (see below)

Re-run a test

If you need to re-run a test, please mark the related checkbox, it will be unchecked automatically once it has re-run:

• Re-run test "changelog_test"
• Re-run test "backend_unittests_pgsql"
• Re-run test "java_pgsql_tests"
• Re-run test "schema_migration_test_pgsql"
• Re-run test "susemanager_unittests"
• Re-run test "javascript_lint"
• Re-run test "spacecmd_unittests"

[github-actions]

Suggested tests to cover this Pull Request

• srv_rename_hostname
• allcli_sanity
• srv_monitoring
• proxy_branch_network
• proxy_cobbler_pxeboot