Fix Zenodo workflow: use production server not sandbox

Change-Id: I2bec624396bf9d1535795d7912b6bd9d1d5ae3bd
diff --git a/.github/workflows/update-zenodo.yml b/.github/workflows/update-zenodo.yml
index a2f7b9c..760879f 100644
--- a/.github/workflows/update-zenodo.yml
+++ b/.github/workflows/update-zenodo.yml
@@ -18,6 +18,7 @@
           concept: 5040449
           metadata: .zenodo.json
           publish: true
+          sandbox: false
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           ZENODO_ACCESS_TOKEN: ${{ secrets.ZENODO_TOKEN }}