chore(deps): bump aiounifi floor to >=91 to match Home Assistant Core

Home Assistant Core pins aiounifi==91 in its bundled unifi
integration. Aligning the floor avoids forcing pip to downgrade
aiounifi on installs that already have HA Core's version.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: sirkirby

custom_components/unifi_network_rules/manifest.json

@@ -12,7 +12,7 @@
     "quality_scale": "custom",
     "requirements": [
         "aiohttp",
-        "aiounifi>=87.0.0",
+        "aiounifi>=91",
         "orjson>=3.8.0"
     ],
     "version": "4.4.5"

requirements.txt

@@ -3,7 +3,7 @@ asyncio
 aiofiles
 aiohttp
 argparse
-aiounifi>=87.0.0
+aiounifi>=91
 pytest
 pytest-asyncio
 pytest-aiohttp