Add BuildEnabled in MultiPlatformBuildService

[munishchouhan]

This PR will fix the error in wave lite:

Message: No bean of type [io.seqera.wave.service.builder.ContainerBuildService] exists. 

[ContainerBuildServiceImpl] a candidate of [ContainerBuildService] is disabled because:

No bean of type [io.seqera.wave.configuration.BuildEnabled] present within context

[BuildEnabled] is disabled because:

Property [wave.build.enabled] with value [false] does not equal required value: true
Path Taken:
new @j.i.Named("MultiBuild") @j.i.Singleton i.s.w.s.b.MultiPlatformBuildService()
\---> @j.i.Named("MultiBuild") @j.i.Singleton i.s.w.s.b.MultiPlatformBuildService#setBuildService([ContainerBuildService buildService]) >> wt=
io.micronaut.context.exceptions.BeanInstantiationException: Bean definition [io.seqera.wave.service.builder.MultiPlatformBuildService] could not be loaded: Failed to inject value for parameter [buildService] of method [setBuildService] of class: io.seqera.wave.service.builder.MultiPlatformBuildService