Pin us-equity-strategies to cash-only equity release.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: Pigbibi

requirements.txt

@@ -1,7 +1,7 @@
 flask
 gunicorn
 quant-platform-kit @ git+https://github.com/QuantStrategyLab/QuantPlatformKit.git@b821e8c318e15d40f925c84a007ae335a3415cd5
-us-equity-strategies @ git+https://github.com/QuantStrategyLab/UsEquityStrategies.git@0cbdacc95fb9041f590472254aef8f1cea35adf8
+us-equity-strategies @ git+https://github.com/QuantStrategyLab/UsEquityStrategies.git@6772cb1
 hk-equity-strategies @ git+https://github.com/QuantStrategyLab/HkEquityStrategies.git@e522688056229a0625031b2b14f34f360f3de548
 pandas
 requests