CAP SFlight breaks with SAP UI 5 Version 120

[rjayasinghe]

When you run SFlight locally or with the current CI you see that UI (tests) don't work anymore. This is due to a bug in UI5 that we can't actively detect as we only have defined a minimum version for UI5. This is OK since we want to always use the latest and greatest. ;)

We should, however, have a regular CI run that would then detect such breakage. ☝🏽

[rjayasinghe]

#843

[c-kobo]

@rjayasinghe this PR fixes it: #863