[build] update use of gradle deprecated features

[macfarla]

Signed-off-by: Sally MacFarlane [email protected]

PR description

There's a few features that are set to be removed in gradle 9

This PR is built on top of #8294

Upgrade notes here
https://docs.gradle.org/8.11/userguide/upgrading_version_8.html#changes_8.11

• use application block for jvm args and sourceCompatibility versions https://docs.gradle.org/current/userguide/application_plugin.html
• source set configurations - order is important https://docs.gradle.org/8.11/userguide/building_java_projects.html#sec:implicit_sourceset_configurations
• use provider.exec instead of just exec

Think the remaining warning is via web3j compileSolidity task

The Project.exec(Closure) method has been deprecated. This is scheduled to be removed in Gradle 9.0. Use ExecOperations.exec(Action) or ProviderFactory.exec(Action) instead. Consult the upgrading guide for further information: https://docs.gradle.org/8.11/userguide/upgrading_version_8.html#deprecated_project_exec

Fixed Issue(s)

Thanks for sending a pull request! Have you done the following?

• Checked out our contribution guidelines?
• Considered documentation and added the doc-change-required label to this PR if updates are required.
• Considered the changelog and included an update if required.
• For database changes (e.g. KeyValueSegmentIdentifier) considered compatibility and performed forwards and backwards compatibility tests

Locally, you can run these tests to catch failures early:

• spotless: ./gradlew spotlessApply
• unit tests: ./gradlew build
• acceptance tests: ./gradlew acceptanceTest
• integration tests: ./gradlew integrationTest
• reference tests: ./gradlew ethereum:referenceTests:referenceTests

[siladu]

LGTM