publish to Open VSX Registry

.github/workflows/build.yml

@@ -89,6 +89,10 @@ jobs:
           files: |
             ${{ steps.vars.outputs.PKG_NAME }}
 
-      - name: Publish VSCode market
+      - name: Publish to VSCode Market
         if: startsWith(github.ref, 'refs/tags/')
         run: vsce publish -i ${{ steps.vars.outputs.PKG_NAME }} -p ${{ secrets.VSCE_TOKEN }}
+
+      - name: Publish to Open VSX Registry
+        if: startsWith(github.ref, 'refs/tags/')
+        run: ovsx publish -i ${{ steps.vars.outputs.PKG_NAME }} -p ${{ secrets.OVSX_TOKEN }}