Bump spotless-plugin-gradle from 6.2.2 to 6.3.0 (#276)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle

@@ -63,7 +63,7 @@ dependencies {
     implementation 'org.asciidoctor:asciidoctorj:2.5.3'
     implementation "io.spring.nohttp:nohttp-gradle:0.0.10"
     implementation "com.github.ben-manes:gradle-versions-plugin:0.42.0"
-    implementation "com.diffplug.spotless:spotless-plugin-gradle:6.2.2"
+    implementation "com.diffplug.spotless:spotless-plugin-gradle:6.3.0"
     implementation "com.adarshr:gradle-test-logger-plugin:3.1.0"
     implementation "io.github.gradle-nexus:publish-plugin:1.1.0"
     implementation "se.patrikerdes:gradle-use-latest-versions-plugin:0.2.18"