Revert "Move Zenodo metadata validation to expected directory (#22)"

This reverts commit f423e08.

Author: balajiRRK

.github/workflows/validate-zenodo.yaml .github/validate-zenodo.yaml.github/workflows/validate-zenodo.yaml renamed to .github/validate-zenodo.yaml

@@ -20,4 +20,4 @@ jobs:
         run: npm install [email protected]
       - name: Check .zenodo.json file
         run: |
-          npx zenodraft metadata validate .zenodo.json 
+          npx zenodraft metadata validate .zenodo.json