fix(deps): update spotless packages to v8

Author: renovate[bot]

benchmark-overhead/build.gradle.kts

@@ -1,6 +1,6 @@
 plugins {
   id("java")
-  id("com.diffplug.spotless") version "7.2.1"
+  id("com.diffplug.spotless") version "8.0.0"
 }
 
 spotless {

conventions/build.gradle.kts

@@ -1,7 +1,7 @@
 plugins {
   `kotlin-dsl`
   // When updating, update below in dependencies too
-  id("com.diffplug.spotless") version "7.2.1"
+  id("com.diffplug.spotless") version "8.0.0"
 }
 
 spotless {
@@ -54,7 +54,7 @@ dependencies {
   implementation("org.apache.maven:maven-aether-provider:3.3.9")
 
   // When updating, update above in plugins too
-  implementation("com.diffplug.spotless:spotless-plugin-gradle:7.2.1")
+  implementation("com.diffplug.spotless:spotless-plugin-gradle:8.0.0")
   implementation("com.google.guava:guava:33.5.0-jre")
   implementation("com.gradleup.shadow:shadow-gradle-plugin:9.2.1")
   implementation("org.apache.httpcomponents:httpclient:4.5.14")

examples/distro/build.gradle

@@ -12,7 +12,7 @@ buildscript {
     }
   }
   dependencies {
-    classpath "com.diffplug.spotless:spotless-plugin-gradle:7.2.1"
+    classpath "com.diffplug.spotless:spotless-plugin-gradle:8.0.0"
     classpath "com.gradleup.shadow:shadow-gradle-plugin:9.2.1"
     classpath "io.opentelemetry.instrumentation:gradle-plugins:2.21.0-alpha-SNAPSHOT"
   }

examples/extension/build.gradle

@@ -11,7 +11,7 @@ plugins {
   See https://imperceptiblethoughts.com/shadow/ for more details about Shadow plugin.
    */
   id "com.gradleup.shadow" version "9.2.1"
-  id "com.diffplug.spotless" version "7.2.1"
+  id "com.diffplug.spotless" version "8.0.0"
 
   id "io.opentelemetry.instrumentation.muzzle-generation" version "2.21.0-alpha-SNAPSHOT"
   id "io.opentelemetry.instrumentation.muzzle-check" version "2.21.0-alpha-SNAPSHOT"