Use custom build type for CI builds
Use custom build type for CI builds

The "Release" built type implies some additional magic in
our CMakeLists, in particular assertions are always disabled
for release builds.

Use the custom "CI" build type to ensure our settings are used
just as we specify them in configure.

vast-io/vast,vast-io/vast,vast-io/vast,vast-io/vast,vast-io/vast