This commit qualifies examples of configuring the CNB builder to clarify
that the examples apply to use of the default Paketo builder, and adds links
to the official Paketo docs for more details.
Fixes gh-19967
With the introduction of Gradle we lost the list of version properties
that were previously in the spring-boot-dependencies POM and were also
linked inside the documentation. This commit introduces an appendix
section in the docs and links the appropriate places to the new section
to restore discoverability.
See gh-19898
