The `dist` project in the SBT build fails to `update`

[iamrecursion]

As discussed with @smarter on gitter, the dist project is broken as only dist-bootstrapped is actually used. dist should probably be disabled.

Minimized example

1. Run the sbt shell
2. project dist
3. update.

Output

[error] (update) sbt.librarymanagement.ResolveException: Error downloading ch.epfl.lamp:dotty-tasty-inspector_0.24:0.25.0-bin-SNAPSHOT
[error]   Not found
[error]   Not found
[error]   not found: /Users/ara/.ivy2/local/ch.epfl.lamp/dotty-tasty-inspector_0.24/0.25.0-bin-SNAPSHOT/ivys/ivy.xml
[error]   not found: https://repo1.maven.org/maven2/ch/epfl/lamp/dotty-tasty-inspector_0.24/0.25.0-bin-SNAPSHOT/dotty-tasty-inspector_0.24-0.25.0-bin-SNAPSHOT.pom
[error] Error downloading ch.epfl.lamp:dotty-staging_0.24:0.25.0-bin-SNAPSHOT
[error]   Not found
[error]   Not found
[error]   not found: /Users/ara/.ivy2/local/ch.epfl.lamp/dotty-staging_0.24/0.25.0-bin-SNAPSHOT/ivys/ivy.xml
[error]   not found: https://repo1.maven.org/maven2/ch/epfl/lamp/dotty-staging_0.24/0.25.0-bin-SNAPSHOT/dotty-staging_0.24-0.25.0-bin-SNAPSHOT.pom

Expectation

The project should work properly.