fix(deps): update dependency com.diffplug.spotless:com.diffplug.spotless.gradle.plugin to v8.6.0 (#150)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

gradle/libs.versions.toml

@@ -60,4 +60,4 @@ jsoup = { module = "org.jsoup:jsoup", version = { strictly = "1.22.2" } }
 spring-boot = { module = "org.springframework.boot:org.springframework.boot.gradle.plugin", version = { strictly = "4.0.6" } }
 spring-dependency-management = { module = "io.spring.dependency-management:io.spring.dependency-management.gradle.plugin", version = { strictly = "1.1.7" }  }
 sonatype-central-upload = { module = "cl.franciscosolis.sonatype-central-upload:cl.franciscosolis.sonatype-central-upload.gradle.plugin", version = { strictly = "1.0.3" } }
-spotless = { module = "com.diffplug.spotless:com.diffplug.spotless.gradle.plugin", version = { strictly = "8.5.1" } }
+spotless = { module = "com.diffplug.spotless:com.diffplug.spotless.gradle.plugin", version = { strictly = "8.6.0" } }