[#95115] GHA: Added uploading VSIX package

Signed-off-by: Grzegorz Latosinski <glatosinski@antmicro.com>

Author: glatosinski

.github/workflows/trace_viewer.yml

@@ -78,3 +78,9 @@ jobs:
       - name: Publish VSCode Extension
         run: |
           yarn publish:vsix -p ${{ secrets.VSC_MARKETPLACE_TOKEN }}
+      - name: Upload VSIX package
+        uses: actions/upload-artifact@v7
+        if: always()
+        with:
+          name: vsix-package
+          path: extension/*.vsix