Revert "Move grails-publish to the plugin block"

This reverts commit 7199a25.

build.gradle

@@ -9,7 +9,6 @@ buildscript {
 
 plugins {
     id 'com.github.ben-manes.versions' version '0.51.0'
-    id 'org.grails.grails-publish'
 }
 
 version = projectVersion
@@ -18,6 +17,7 @@ group = 'org.grails.plugins'
 apply plugin: 'java-library'
 apply plugin: 'java-test-fixtures'
 apply plugin: 'org.grails.grails-plugin'
+apply plugin: 'org.grails.grails-publish'
 
 tasks.withType(JavaCompile).configureEach {
     options.release = 17

settings.gradle

@@ -1,13 +1,3 @@
-pluginManagement {
-    repositories {
-        maven { url "https://repo.grails.org/grails/core/" }
-        gradlePluginPortal()
-    }
-    plugins {
-        id "org.grails.grails-publish" version "${grailsGradlePluginVersion}"
-    }
-}
-
 plugins {
     id 'com.gradle.develocity' version '3.18.2'
     id 'com.gradle.common-custom-user-data-gradle-plugin' version '2.0.2'