fix: Adjust DeepSeek cache ratio to 0.1

setting/operation_setting/cache_ratio.go

@@ -16,9 +16,9 @@ var defaultCacheRatio = map[string]float64{
 	"gpt-4o-mini-2024-07-18":       0.5,
 	"gpt-4o-realtime-preview":      0.5,
 	"gpt-4o-mini-realtime-preview": 0.5,
-	"deepseek-chat":                0.5,
-	"deepseek-reasoner":            0.5,
-	"deepseek-coder":               0.5,
+	"deepseek-chat":                0.1,
+	"deepseek-reasoner":            0.1,
+	"deepseek-coder":               0.1,
 }
 
 var defaultCreateCacheRatio = map[string]float64{}