build: Update shadow and PlotSquared

Closes #1367

buildSrc/build.gradle.kts

@@ -27,6 +27,6 @@ val properties = Properties().also { props ->
 dependencies {
     implementation(gradleApi())
     implementation("org.ajoberstar.grgit:grgit-gradle:4.1.0")
-    implementation("gradle.plugin.com.github.jengelman.gradle.plugins:shadow:7.0.0")
+    implementation("gradle.plugin.com.github.johnrengelman:shadow:7.1.0")
     implementation("io.papermc.paperweight.userdev:io.papermc.paperweight.userdev.gradle.plugin:1.1.11")
 }

buildSrc/src/main/kotlin/PlatformConfig.kt

@@ -1,24 +1,17 @@
 import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
 import org.gradle.api.Project
-import org.gradle.api.attributes.java.TargetJvmVersion
 import org.gradle.api.component.AdhocComponentWithVariants
 import org.gradle.api.plugins.JavaPluginExtension
 import org.gradle.api.publish.PublishingExtension
 import org.gradle.api.publish.maven.MavenPublication
 import org.gradle.api.tasks.bundling.Jar
-import org.gradle.api.tasks.compile.JavaCompile
-import org.gradle.api.tasks.javadoc.Javadoc
-import org.gradle.api.tasks.testing.Test
-import org.gradle.external.javadoc.StandardJavadocDocletOptions
 import org.gradle.kotlin.dsl.apply
 import org.gradle.kotlin.dsl.configure
-import org.gradle.kotlin.dsl.dependencies
 import org.gradle.kotlin.dsl.get
 import org.gradle.kotlin.dsl.named
 import org.gradle.kotlin.dsl.provideDelegate
 import org.gradle.kotlin.dsl.register
 import org.gradle.kotlin.dsl.the
-import org.gradle.kotlin.dsl.withType
 
 fun Project.applyPlatformAndCoreConfiguration() {
     applyCommonConfiguration()

gradle/libs.versions.toml

@@ -19,7 +19,7 @@ mcore = "7.0.1"
 residence = "4.5._13.1"
 towny = "0.97.2.7"
 protocollib = "4.7.0"
-plotsquaredV6 = "6.1.2"
+plotsquaredV6 = "6.1.3"
 plotsquaredV4 = "4.514"
 redprotect = "1.9.6"