ci: add GH release step

Author: donderom

.github/workflows/release.yml

@@ -25,7 +25,12 @@ jobs:
       - name: Setup SBT
         uses: sbt/setup-sbt@v1
 
-      - name: Run ci-release
+      - name: Release
+        uses: softprops/action-gh-release@v2
+        with:
+          generate_release_notes: true
+
+      - name: Publish
         run: sbt ci-release
         env:
           PGP_PASSPHRASE: ${{ secrets.PGP_PASSPHRASE }}