Create CITATION.cff

CITATION.cff

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+abstract: A GitHub action to automatically push a release to Zenodo
+authors:
+  - affiliation: FAIR Data Innovations Hub
+    email: [email protected]
+    family-names: Soundarajan
+    given-names: Sanjay
+cff-version: 1.2.0
+date-released: '2022-08-30'
+keywords:
+  - GitHub
+license: Apache-2.0
+message: If you use this software, please cite it as below.
+repository-code: https://github.com/megasanjay/upload-to-zenodo
+title: Upload to Zenodo
+type: software
+version: 2.0.1
+identifiers:
+  - description: DOI for this application's record on Zenodo
+    type: doi
+    value: https://doi.org/10.5281/zenodo.7036310