Geo - Does not sync LFS objects from fork networks

What does this MR do?

Excludes LFS from networks when selective sync is enabled. For more context see #225427 (comment 371291336).

Screenshots

Does this MR meet the acceptance criteria?

Conformity

Availability and Testing

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

  • Label as security and @ mention @gitlab-com/gl-security/appsec
  • The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
  • Security reports checked/validated by a reviewer from the AppSec team

Related issues

Closes #225427 (closed)