* Check for the current version of foreman when deciding to install
0.87.1 was current when this was added, but `gem install foreman` now
installs 0.87.2, so this check always fails (I do not have the older
version present).
I'm suspecting we either don't want to version pin this test (assume
whatever version of foreman installed is fine) or we need to use
something like the Gemfile to have dependabot keep this version info
in sync with the upstream.
All I do here is update the current release version to test against.
* Remove foreman version constraint
If any version of (very stable) foreman is installed, assume it's
recent enough to run the (also very stable) Procfile
Only install foreman gem if it's not installed. Updates are on the user.