Increase hey_reachy probability_cutoff to 0.9 to reduce false triggers

reachy_mini_ha_voice/wakewords/hey_reachy.json

@@ -7,10 +7,10 @@
   "trained_languages": ["en"],
   "version": 2,
   "micro": {
-    "probability_cutoff": 0.8,
+    "probability_cutoff": 0.9,
     "sliding_window_size": 5,
     "feature_step_size": 10,
     "tensor_arena_size": 65536,
     "minimum_esphome_version": "2024.7.0"
   }
-}
+}