gradle plugin not resolving dependencies properly

# libs.versions.toml
dgs-codegen = { id = "com.netflix.dgs.codegen", version = "6.+" }

// build.gradle.kts
buildscript { dependencyLocking { lockAllConfigurations() } }

plugins {
  `java-library`
  alias(libs.plugins.dgs.codegen)
}

dependencyLocking {
  lockAllConfigurations()
}

tasks.withType<GenerateJavaTask>().configureEach {
  packageName = "com.xenoterracide.controller.registration"
  language = "java"
}

Configuration cache state could not be cached: field `classpath` of task `:controller-registration:compileJava` of type `org.gradle.api.tasks.compile.JavaCompile`: error writing value of type 'org.gradle.api.internal.artifacts.configurations.DefaultUnlockedConfiguration'
> Could not resolve all files for configuration ':controller-registration:compileClasspath'.
   > Resolved 'org.jetbrains:annotations:13.0' which is not part of the dependency lock state
   > Resolved 'org.jetbrains.kotlin:kotlin-stdlib:1.9.24' which is not part of the dependency lock state
   > Resolved 'com.netflix.graphql.dgs:graphql-dgs-platform:5.5.1' which is not part of the dependency lock state
   > Resolved 'com.netflix.graphql.dgs:graphql-dgs-platform-dependencies:5.5.1' which is not part of the dependency lock state

calling dependencies --write-locks (with some output filters

     +--- com.graphql-java:graphql-java:19.2 FAILED
|    +--- com.graphql-java:graphql-java:19.2 FAILED
|    +--- com.graphql-java:graphql-java:22.0 FAILED
|    +--- com.graphql-java:graphql-java:22.1 FAILED
|    +--- com.graphql-java:graphql-java:{prefer 18.3} FAILED
|    |    +--- com.graphql-java:graphql-java:{strictly [19.2, 20[; prefer 19.2; reject 18.2} FAILED
+--- com.netflix.graphql.dgs:graphql-dgs-platform FAILED

I tried adding things like com.netflix.graphql.dgs:graphql-dgs-platform:5.5.1 to implementation but that didn't fix it.

Reproduce the report from libs.versions.toml and build.gradle.kts, starting with dependencyLocking and the dgs.codegen plugin alias. Run dependencies --write-locks and inspect the reported FAILED GraphQL DGS resolutions. Done means the plugin dependencies resolve into the lock state and the configuration cache no longer reports the compileClasspath failure.