Reduce memory usage of self-contained build

[volllly]

We had set the build settings PublishReadyToRun to speed up startup times and EnableCompressionInSingleFile to reduce binary size.

These settings lead to a memory consumption of ~150mb per launcher process.
With removing these settings we get a more acceptable memory consumption of ~25mb per launcher process.

The binary size increases by 50mb but this is a compromise we should take 😁