add nightly tag

Author: gtfierro

.github/workflows/nightly-builds.yml

@@ -29,10 +29,15 @@ jobs:
         with:
           command: test
 
+      - name: Get current date
+        id: date
+        run: echo "::set-output name=date::$(date +'%Y-%m-%d')"
+
       - uses: meeDamian/[email protected]
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           name: Nightly Build
+          tag: nightly-${{ steps.date.outputs.date }}
           body: >
             This is an automatically generated release
           files: >