chore(deps): Update gradle and github actions

Author: renovate[bot]

gradle/libs.versions.toml

@@ -31,5 +31,5 @@ indra = { id = "net.kyori.indra", version.ref = "indra" }
 indra-checkstyle = { id = "net.kyori.indra.checkstyle", version.ref = "indra" }
 indra-licenserSpotless = { id = "net.kyori.indra.licenser.spotless", version.ref = "indra" }
 indra-sonatype = { id = "net.kyori.indra.publishing.sonatype", version.ref = "indra" }
-nexusPublish = { id = "io.github.gradle-nexus.publish-plugin", version = "2.0.0-rc-1"}
-spotless = { id = "com.diffplug.spotless", version = "6.21.0" }
+nexusPublish = { id = "io.github.gradle-nexus.publish-plugin", version = "2.0.0-rc-2"}
+spotless = { id = "com.diffplug.spotless", version = "6.23.3" }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME