Remove parallel check for versions plugin

Versions 0.53.0 now includes this check itself, it is unnecessary for us
to do it ourselves.

Author: Jonathing

settings.gradle

@@ -33,7 +33,7 @@ dependencyResolutionManagement {
     versionCatalogs {
         register('libs') {
             version 'gradle-javadoc-links', '8.14'
-            version 'gradle-versions', '0.52.0'
+            version 'gradle-versions', '0.53.0'
 
             plugin 'licenser',       'net.minecraftforge.licenser'  version '1.2.0' // https://plugins.gradle.org/plugin/net.minecraftforge.licenser
             plugin 'changelog',      'net.minecraftforge.changelog' version '3.0.6' // https://plugins.gradle.org/plugin/net.minecraftforge.changelog

src/main/groovy/net/minecraftforge/gradleutils/GradleUtilsExtensionImpl.groovy

@@ -185,15 +185,8 @@ import static net.minecraftforge.gradleutils.GradleUtilsPlugin.LOGGER
         private void finish(Project project) {
             this.version.finalizeValue()
 
-            final parallel = project.gradle.startParameter.parallelProjectExecutionEnabled
             project.pluginManager.withPlugin('com.github.ben-manes.versions') {
                 project.tasks.withType(DependencyUpdatesTask).configureEach { task ->
-                    if (parallel) {
-                        task.doFirst {
-                            throw new IllegalStateException("The gradle-versions-plugin doesn't support parallel execution. Please try again using --no-parllel. If this was fixed, contact Forge.")
-                        }
-                    }
-
                     if (!task.compatibleWithConfigurationCache)
                         task.notCompatibleWithConfigurationCache("The gradle-versions-plugin isn't compatible with the configuration cache")