Fix version comparison operator

custom_components/tuya_local/manifest.json

@@ -7,6 +7,6 @@
     "issue_tracker": "https://github.com/make-all/tuya-local/issues",
     "dependencies": [],
     "codeowners": ["@make-all"],
-    "requirements": ["pycryptodome~=3.15.0","tinytuya=1.6.5"],
+    "requirements": ["pycryptodome~=3.15.0","tinytuya==1.6.5"],
     "config_flow": true
 }