Refine release workflow for better artifact and asset handling

- In release.yml:
  - Updated the 'Upload Artifact' step to use a more concise name
  - Added a new step for uploading assets to GitHub Releases using
    softprops/action-gh-release
  - Conditionally execute the 'Upload Assets' step only for tag pushes

Author: Ibrahim Ethem Gursoy

.github/workflows/release.yml

@@ -30,9 +30,17 @@ jobs:
     - name: Create dist
       run: make dist
 
-    - name: 'Upload Artifact'
+    - name: Upload Artifact
       uses: actions/upload-artifact@v3
       with:
         name: publish_dist
         path: bin/publish_dist.tar.gz
         retention-days: 5
+
+    - name: Upload Assets
+      uses: softprops/action-gh-release@v1
+      if: startsWith(github.ref, 'refs/tags/')
+      with:
+        files: |
+          bin/publish_dist.tar.gz
+          LICENSE