Gradle integration test failing in main for Jackson 3.0.0-SNAPSHOT

[cowtowncoder]

(note: continuation of #23 -- also note: branch is "main", not "master" like most Jackson repos)

Looks like improved Gradle metadata test is failing when merged to 3.0, with:

[ERROR] Failures: 
[ERROR]   GradleTest.testJacksonBomDependency:29->build:62 FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':checkMetadata'.
> Could not resolve all files for configuration ':compileClasspath'.
   > Could not find tools.jackson:jackson-bom:3.0.0-rc1-SNAPSHOT.
     Searched in the following locations:
       - https://oss.sonatype.org/content/repositories/snapshots/tools/jackson/jackson-bom/3.0.0-rc1-SNAPSHOT/maven-metadata.xml
       - https://oss.sonatype.org/content/repositories/snapshots/tools/jackson/jackson-bom/3.0.0-rc1-SNAPSHOT/jackson-bom-3.0.0-rc1-SNAPSHOT.pom
       - https://repo.maven.apache.org/maven2/tools/jackson/jackson-bom/3.0.0-rc1-SNAPSHOT/maven-metadata.xml
       - https://repo.maven.apache.org/maven2/tools/jackson/jackson-bom/3.0.0-rc1-SNAPSHOT/jackson-bom-3.0.0-rc1-SNAPSHOT.pom
     Required by:
         project :

which I think is just because "new" Jackson (3.0) packages (under "tools.jackson.") get published to different Maven Central Nexus repo.
Main pom.xml has settings, so I think something similar is just needed for Gradle build file or settings.

[cowtowncoder]

@jjohannes I was hoping you had an idea of what is happening here -- I suspect it's relatively simple config setting thing as I suggested above.