Update tinytuya to 1.9.1

This should bring in the support needed to implement gateways and sub devices.

custom_components/tuya_local/manifest.json

@@ -8,6 +8,6 @@
     "issue_tracker": "https://github.com/make-all/tuya-local/issues",
     "dependencies": [],
     "codeowners": ["@make-all"],
-    "requirements": ["pycryptodome~=3.16.0","tinytuya==1.8.0"],
+    "requirements": ["pycryptodome~=3.16.0","tinytuya==1.9.1"],
     "config_flow": true
 }