[tests:fix] Fixed flaky Selenium unsaved changes test on Chromium v126+#1220

nemesifier merged 2 commits intoopenwisp:masteropenwisp/openwisp-controller:masterfrom

Mahathi-s154:issues/902-fix-selenium-unsaved-changesMahathi-s154/openwisp-controller:issues/902-fix-selenium-unsaved-changesCopy head branch name to clipboard