Add a query for the linked server config if we are local admin

[NeffIsBack]

Description

When we are mssql admin we can also query the login config for linked servers. So this is also queried for in the enum_links module.

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)

Screenshots (if appropriate):

Checklist:

• I have ran Ruff against my changes (via poetry: poetry run python -m ruff check . --preview, use --fix to automatically fix what it can)
• I have added or updated the tests/e2e_commands.txt file if necessary
• New and existing e2e tests pass locally with my changes
• My code follows the style guidelines of this project (should be covered by Ruff above)
• If reliant on third party dependencies, such as Impacket, dploot, lsassy, etc, I have linked the relevant PRs in those projects
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (PR here: https://github.com/Pennyw0rth/NetExec-Wiki)