Fix Gradle 9.4.0 variant resolution failure with gradle-consistent-versions

[FinlayRJW]

Before this PR

On Gradle 9.4.0 with gradle-consistent-versions, compileClasspath resolution fails:

Could not resolve root project :.
  > Value for variants of root project : has not been calculated yet.

GCV's configureEach calls conf.extendsFrom(rootConfiguration) on all configs. Since rootConfiguration has a ProjectDependency on root, this creates a self-referencing cycle in the variant model for our consumable config on the root project. Introduced by gradle/gradle#36245 which made extendsFrom lazy.

After this PR

Excludes our custom outgoing configuration from GCV's configureEach using VersionRecommendationsExtension.excludeConfigurations(). Our configurations use a custom Usage attribute with no external module dependencies, so GCV's version constraints are irrelevant.

Also bumps tested Gradle 9 version to 9.4.0 and adds a GCV compatibility test.

Superseded by #150 which fixes the architectural root cause instead.

Possible downsides?

Testing

• New compatible_with_consistent_versions test
• All existing tests pass

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Description

Fix Gradle 9.4.0 variant resolution failure with gradle-consistent-versions

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💡 Improvements

• Fix Gradle 9.4.0 variant resolution failure with gradle-consistent-versions (#149)

[FinlayRJW]

closed in favour of palantir/gradle-consistent-versions#1614