Workflows: release tag and upload assets (#397)

.github/workflows/test-OSW.yml

@@ -88,5 +88,22 @@ jobs:
         uses: actions/upload-artifact@v3
         with:
           name: firmwares
-          path: |
-            *.bin
+          path: "*.bin"
+
+  # do this last step seperately to avoid race conditions with firmware upload
+  create-release:
+    runs-on: ubuntu-latest
+    needs: build-OSW
+    if: startsWith(github.ref, 'refs/tags/v')
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          pattern: "*.bin"
+          merge-multiple: true
+      - name: Create release and upload firmware to it
+        uses: softprops/action-gh-release@v2
+        with:
+          files: "*.bin"
+          draft: true
+          prerelease: true
+          generate_release_notes: true