Add missing check-version-bump CI script

check-version-bump.py

@@ -0,0 +1,15 @@
+import tomllib
+import sys
+
+from packaging.version import Version
+import requests
+
+PYPI_URL = "https://pypi.org/pypi/chatdbg/json"
+
+latest = requests.get(PYPI_URL).json()["info"]["version"]
+with open("pyproject.toml", "rb") as f:
+    current = tomllib.load(f)["project"]["version"]
+
+if Version(current) <= Version(latest):
+    print(f"Latest version is {latest} on PyPI. Please bump versions.")
+    sys.exit(1)