replace outdated action for creating a release

This is related to #45.

.github/workflows/deploy.yaml

@@ -39,17 +39,15 @@ jobs:
           path: target/descriptor.xml
           retention-days: 1
 
-      - name: create release
-        uses: actions/create-release@v1
-        id: create_release
-        with:
-          draft: false
-          prerelease: false
-          tag_name: ${{ github.ref }}
-          release_name: ${{ github.ref }}
-          body_path: CHANGES.md
+      - name: Create release
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          tag: ${{ github.ref_name }}
+        run: |
+          gh release create "$tag" \
+              --repo="$GITHUB_REPOSITORY" \
+              --title="${GITHUB_REPOSITORY#*/} ${tag}" \
+              --generate-notes
 
       - name: upload SEED package to release
         uses: actions/upload-release-asset@v1