Update actions/upload-artifact action to v4 (#459)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -28,6 +28,6 @@ jobs:
         run: npm run package
       - name: upload vsix package
         if: matrix.os == 'ubuntu-latest'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           path: veriloghdl-*.vsix