fix(ee): remove unnecessary quotes from type annotation

[HemalathaMadeswaran18]

Purpose / Description

The file ee/observal_server/middleware/enterprise_guard.py already uses from __future__ import annotations, making the quoted string annotation on line 32 redundant. Ruff UP037 flags this.

Fixes

• Fixes fix(lint): remove quotes from type annotation in enterprise_guard.py #1557

Approach

Remove the quotes around Settings in the __init__ signature since from __future__ import annotations already defers evaluation.

How Has This Been Tested?

make lint passes cleanly after this change.

Checklist

• You have a descriptive commit message with a short title (first line, max 50 chars).
• You have commented your code, particularly in hard-to-understand areas
• You have performed a self-review of your own code
• UI changes: include screenshots of all affected screens (in particular showing any new or changed strings)

AI Assistance

• Yes (Kiro CLI)
• Was the generated code manually reviewed and tested?

[HemalathaMadeswaran18]

Testing evidence