Set exact bittensor version to 9.9.0

Author: dbobrenko

pyproject.toml

@@ -26,7 +26,7 @@ dependencies = [
     "loguru>=0.7.3",
     "tavily-python>=0.7.10",
     "pip>=25.1.1",
-    "bittensor>=9.8.3",
+    "bittensor==9.9.0",
     "rouge>=1.0.1",
     "substrate-interface>=1.7.11",
     "types-netaddr>=1.3.0.20240530",