Update build.gradle

Author: AuroraLS3

Plan/plugin/build.gradle

@@ -151,10 +151,10 @@ hangarPublish {
 
 oreDeployment {
     defaultPublication {
-        projectId.set('Plan')
+        projectId.set('plan')
         channel.set(providers.environmentVariable("RELEASE_PRERELEASE").map { it == "true" ? "DEV" : "Release" }.orElse("Release"))
         versionBody.set(providers.environmentVariable("RELEASE_CHANGELOG"))
 
         publishArtifacts.from(file(providers.environmentVariable("RELEASE_JAR_PATH").getOrElse("Plan.jar")))
     }
-}
+}