Update install_dev.py

Author: guangy10

install_dev.py

@@ -5,7 +5,7 @@
 
 def install_torch_nightly_deps():
     """Install torch related dependencies from pinned nightly"""
-    EXECUTORCH_NIGHTLY_VERSION = "dev20250620"
+    EXECUTORCH_NIGHTLY_VERSION = "dev20250625"
     TORCHAO_NIGHTLY_VERSION = "dev20250620"
     # Torch nightly is aligned with pinned nightly in https://github.com/pytorch/executorch/blob/main/install_requirements.py#L74
     TORCH_NIGHTLY_VERSION = "dev20250601"