Investigate intermittent failures of chrome-extension-pack-kogito-kie-editors

Summary
During following task https://github.com/kiegroup/kie-tools/pull/1178 we
identified an intermittent failure for chrome-extension it-tests.
We should investigate and stabilize.
One of the goals is also to add retries:1 to the test config so that
negative failures are rerun, which should improve stability.

AC
Test suite is stable and the test do not fail intermittently.
Test config includes retries:1.