Revert "bump monai"

This reverts commit 6c3132c.

Author: edyoshikun

pyproject.toml

@@ -15,7 +15,7 @@ dependencies = [
     "timm>=0.9.5",
     "tensorboard>=2.13.0",
     "lightning>=2.0.1",
-    "monai>=1.3.1",
+    "monai>=1.2.0",
     "jsonargparse[signatures]>=4.20.1",
     "scikit-image",
     "matplotlib",