The erlang-solutions repository is broken for Ubuntu18 (They did not
sign their repository metadata). For now, disable the rabbitmq tests
which depend upon that. I'll open a PR with a revert of this commit.
We can watch it to see when it passes in Ci to know that the
erlang-soutions repository has been fixed
* Update Shippable integration test groups.
* Update integration test group aliases.
* Rebalance AWS and Azure tests with extra group.
* Rebalance Windows tests with another group.
