Bump GabrielBB/xvfb-action from 1.4 to 1.6

Bumps [GabrielBB/xvfb-action](https://github.com/gabrielbb/xvfb-action) from 1.4 to 1.6.
- [Release notes](https://github.com/gabrielbb/xvfb-action/releases)
- [Commits](https://github.com/gabrielbb/xvfb-action/compare/v1.4...v1.6)

---
updated-dependencies:
- dependency-name: GabrielBB/xvfb-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/nodejs.yml

@@ -85,7 +85,7 @@ jobs:
         run: yarn run test:e2e
       - name: Run E2E Tests on Linux
         if: runner.os == 'Linux'
-        uses: GabrielBB/xvfb-action@v1.4
+        uses: GabrielBB/xvfb-action@v1.6
         with:
           run: yarn run test:e2e
         env: