chore: unpin jupyer-cache (#567)

Author: agoose77

pyproject.toml

@@ -38,7 +38,7 @@ requires-python = ">=3.9"
 dependencies = [
     "importlib_metadata",
     "ipython",
-    "jupyter-cache>=0.5,<0.7",
+    "jupyter-cache>=0.5",
     "nbclient",  # nbclient version pinned by jupyter-client
     "myst-parser>=1.0.0",
     "nbformat~=5.0",