launcher: repin the instrumented trainer

kernels/phase4_session.py

@@ -185,7 +185,7 @@ def main():
         "hubckpt.py": ("train/hubckpt.py",
                        "d4b50ed0928c678c94ce6764612a4655f2959c0a7b91d6fd588e8efddff298b2"),
         "train_ounce100m.py": ("train/train_ounce100m.py",
-                               "34d541785ac2aa94038b463d5595334b1937c427698fcf2e10134f34cbf91888"),
+                               "d795bb388dab42be5efedf133d0124265b3a0c60ddd8f5c375986a85de70b954"),
     })
 
     import ounce100m_credentials