Fix jupyter_core pinning (#1122)

Fixes #1121

Author: ophie200

pyproject.toml

@@ -31,7 +31,7 @@ dependencies = [
     "argon2-cffi",
     "jinja2",
     "jupyter_client>=7.4.4",
-    "jupyter_core>=4.12,!=~5.0",
+    "jupyter_core>=4.12,!=5.0.*",
     "jupyter_server_terminals",
     "nbconvert>=6.4.4",
     "nbformat>=5.3.0",