fix(deps): update dependency com.diffplug.spotless:spotless-plugin-gradle to v7

Author: renovate[bot]

gradle/libs.versions.toml

@@ -46,7 +46,7 @@ mockk = "io.mockk:mockk:1.14.2"
 
 # Gradle
 gradle-licenser = "net.kyori:indra-licenser-spotless:3.1.3"
-gradle-spotless = "com.diffplug.spotless:spotless-plugin-gradle:6.25.0"
+gradle-spotless = "com.diffplug.spotless:spotless-plugin-gradle:7.0.3"
 gradle-shadow = "com.gradleup.shadow:com.gradleup.shadow.gradle.plugin:8.3.6"
 gradle-kotlin-dsl = "org.gradle.kotlin.kotlin-dsl:org.gradle.kotlin.kotlin-dsl.gradle.plugin:5.2.0"
 gradle-plugin-kotlin = { module = "org.jetbrains.kotlin.jvm:org.jetbrains.kotlin.jvm.gradle.plugin" }