Fix GitHub NRT 2FA rule

[pl4nty]

Change(s):

• Renamed table and removed IP address in Solutions/GitHub/Analytic Rules/NRT Two Factor Authentication Disabled.yaml

Reason for Change(s):

• Old table removed
• Replacement table doesn't have IP address column

Version Updated:

• Yes

Testing Completed:

• Yes

Checked that the validations are passing and have addressed any issues that are present:

• No - please approve the GitHub workflows