I'm not sure how these tests ever worked. I guess some version of
Node.js and npm come pre-installed on the ubuntu-latest images?
I would have prefered to use Node.js v10 because that is our current
minimum supported version, but we have a surprising number of tests
that don't work on Node.js v10 (mostly due to `assert.match()`, which
was added in Node.js v12).
Travis placed an unnecessary breaking restriction on our tests and failed to respond within 72 hours to our complaint. This has forced us to introduce Github Actions to manage our testing. This is hopefully a temporary measure while Travis either gets itself together or we find a non-Github requirement.
