Remove outdated notebooks, add first ICU mortality prediction benchmark (#530)

Author: amrit110

.pre-commit-config.yaml

@@ -21,7 +21,7 @@ repos:
     - id: black
 
   - repo: https://github.com/charliermarsh/ruff-pre-commit
-    rev: 'v0.1.5'
+    rev: 'v0.1.7'
     hooks:
     - id: ruff
       args: [--fix, --exit-non-zero-on-fix]