Ensure PAYG refresh process does not call SCC

[mackdk]

What does this PR change?

This PR adds an additional unit test to verify we are not calling SCC with the logic used to refresh PAYG authorizations.

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/22676

• 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

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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_handle_software_channels_with_ISS_v2
• allcli_sanity
• srv_manage_channels_page
• srv_channels_add
• srv_sync_products
• srv_delete_channel_with_tool
• srv_menu
• srv_sync_channels
• srv_content_lifecycle
• srv_task_status_engine
• srv_first_settings
• srv_menu_filter
• srv_wait_for_reposync
• allcli_update_activationkeys
• srv_enable_sync_products
• srv_create_repository
• srv_delete_channel_from_ui
• srv_disable_local_repos_off
• srv_add_rocky8_repositories
• srv_channel_api
• srv_clone_channel_npn