Bump us equity strategies to 0.7.52

Author: Pigbibi

requirements.txt

@@ -1,7 +1,7 @@
 flask
 gunicorn
 quant-platform-kit @ git+https://github.com/QuantStrategyLab/QuantPlatformKit.git@v0.7.36
-us-equity-strategies @ git+https://github.com/QuantStrategyLab/UsEquityStrategies.git@v0.7.50
+us-equity-strategies @ git+https://github.com/QuantStrategyLab/UsEquityStrategies.git@v0.7.52
 hk-equity-strategies @ git+https://github.com/QuantStrategyLab/HkEquityStrategies.git@hk-low-vol-dividend-quality-20260603-runtime-adapter-kwargs
 pandas
 requests