Required changes include, but are not limited to:
* Switching from spring-doc-resources:0.2.5 to spring-asciidoctor-backends used to build documewntation.
* Resolving build dependencies from Maven Central.
* Importing the Spring PropDeps Gradle Plugins locally.
* Refactoring the local Spring Build Conventions Gradle Plugins with the latest, state-of-art build and infrastructure practices.