fix Zenodo metadata

Author: casperdcl

.zenodo.json

@@ -14,7 +14,6 @@
   "contributors": [
     {"name": "others", "type": "Other"}],
   "keywords": ["open-source", "AI", "book", "ML", "MLOps", "Jupyter-Book"],
-  "license": "CC-BY-4.0 AND Apache-2.0",
   "imprint_publisher": "Prem",
   "access_right": "open",
   "upload_type": "publication",