Add CITATION.cff for release

Author: tmorrell

CITATION.cff

@@ -8,7 +8,7 @@ authors:
 abstract: Python wrapper for CaltechDATA API.
 repository-code: "https://github.com/caltechlibrary/caltechdata_api"
 type: software
-version: 1.4.3
+version: 1.4.4
 license-url: "https://data.caltech.edu/license"
 keywords:
   - GitHub