Configure PublishingExtension for WorldEdit Sponge

[tyhdefu]

Currently, sponge api aren't be published to the maven repository (only the poms are): https://maven.enginehub.org/repo/com/sk89q/worldedit/worldedit-sponge/7.4.0-SNAPSHOT/

Looks like the worldedit-sponge is just not configuring publishing:

• Sponge (No configure<PublishingExtension> ) - https://github.com/EngineHub/WorldEdit/blob/version/7.3.x/worldedit-sponge/build.gradle.kts
• Bukkit (configures it) - https://github.com/EngineHub/WorldEdit/blob/version/7.3.x/worldedit-bukkit/build.gradle.kts#L110
• Fabric (configures it) - https://github.com/EngineHub/WorldEdit/blob/version/7.3.x/worldedit-fabric/build.gradle.kts#L71

Presumably since worldedit-sponge is missing:

configure<PublishingExtension> {
    publications.named<MavenPublication>("maven") {
        from(components["java"])
    }
}

It doesn't get the information from the java-library plugin to actually include the jar, so it just includes the pom.

Unfortunately I obviously don't have permission to publish the enginehub repository, but perhaps someone could take a look to see if this fix would work?

[wizjany]

FWIW publishing behavior is testable locally via the publishToMavenLocal task.

[octylFractal]

The POMs themselves may have issues (#1778) so a thorough verification of those should be done as well.

[tyhdefu]

Thanks for letting me know about publishToMavenLocal.
After running this, the JARs were correctly put in a local maven repo, and I could compile my plugin with the worldedit api jar - so I think thats good confirmation.