This commit adds support for platform API 0.4 when invoking a CNB
builder in the Maven and Gradle plugins. If the builder advertises
that it supports platform API 0.4 then that version will be
requested when invoking lifecycle phases. Otherwise the plugins
will fall back to requesting platform API 0.3.

Requesting platform API 0.4 when invoking builder lifecycle phases
has the primary benefit of making it easier to pass command-line
arguments to the default process in the generated image.

Fixes gh-23692