Added --get-sid flag on mssql protocol

[seriotonctf]

Added --get-sid flag on mssql protocol

Description

The --get-sid flag has been added to the MSSQL protocol, providing a way to retrieve the domain SID via SQL queries (DEFAULT_DOMAIN() and SUSER_SID()), matching the existing --get-sid functionality already available in the LDAP protocol.

This reuses the same SID resolution logic already present in rid_brute (querying SUSER_SID('DOMAIN\Domain Admins') and parsing with impacket's SID class), but exposes it as a standalone enumeration option.

Type of change

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Deprecation of feature or functionality
• This change requires a documentation update
• This requires a third party update (such as Impacket, Dploot, lsassy, etc)

Screenshots (if appropriate):

Checklist:

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• 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 modules or features are required to be added to the e2e tests)
• New and existing e2e tests pass locally with my changes
• If reliant on changes of 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)

[mpgn]

quick comment;

• it only work for english system
• what if it's local (no domain join)

[NeffIsBack]

Hi and thanks for the PR. However the points by @mpgn are pretty valid concerns.