fix: align LongBridge QPK metadata pin

Co-Authored-By: Codex <noreply@openai.com>

Author: Pigbibi

qsl.toml

@@ -5,7 +5,7 @@ upgrade_ring = "ring_d"
 allow_legacy = false
 
 [qsl.requires]
-quant_platform_kit = "a824143ccb91f1e4a6a9673e11c287922f019f69"
+quant_platform_kit = "fc66f54c51eec141ea6a39bc8069c3e71ee68755"
 us_equity_strategies = "cec2a6a7aac02bd06ff9c83703b14c61166b245a"
 hk_equity_strategies = "f07a1eeb46a82dd28cf2fa6f357e88866cfb3ff9"