Update to final release of eXist 3.0

[joewiz]

• brew cask audit --download {{cask_file}} is error-free.
• brew cask style --fix {{cask_file}} reports no offenses.
• The commit message includes the cask’s name and version.

For background, see #28284.

[joewiz]

Very strange, it seems Travis is stuck? Usually the tests run very quickly and return success or failure. In this case it doesn't seem to have even started?

[miccal]

@joewiz if you look here you will see that there is a large backlog of macOS builds; it always seems to be the case at this time of the day or night (depending on where you are).

[joewiz]

@miccal Ah, I see! Looks like they had some Mac-specific outage earlier today too, so perhaps it's even worse than usual. Thanks, I'll check that page in the future.

[joewiz]

@miccal Thank you!

[miccal]

You're welcome.