Using the outputs from `distZip` and `bootDistZip` as input to the
`bootBuildImage` task instead of indirectly using the output file
path prevents Gradle warnings about implicit task dependencies.
Fixes gh-32506
Paketo Java buildpack version 6.0.0 adds a buildpack and removes
support for the SBOM in the format that the system tests attempt
to verify.
Fixes gh-28823
A new system test plugin is being made available for running test
suites that should be run less frequently than with every commit, such
as tests that verify Spring Boot compatibility with external
projects. CI pipeline configuration for running system tests is also
provided.
The first system tests verify the behavior of the Spring Boot image
building plugins when building images using Paketo buildpacks.
Closes gh-25824
Phillip Webb
Scott Frederick
Andy Wilkinson
dreis2211