Support Bleep builds

[fthomas]

It would be nice if Scala Steward could also extract/update dependencies from/in Bleep builds.

[fthomas]

#3236 has a BleepAlg based on BSP. It does not yet extract any dependencies because buildTargetDependencyModules does not return any results. I believe once scalacenter/bloop#2197 propagates to bleep, it will report dependencies.