New end-to-end testing framework for HTML report
The HTML report currently uses Protractor as framework for end-to-end testing. This is EOL since August 2023 and indeed already testing with current versions of Chrome has stopped working. We have found a workaround in 06cf746a and there are some promises by others to keep it working, but it is unclear whether it will indeed be usable in the future. So we should maybe nevertheless migrate to one of the current testing frameworks.