Excavator: Enable gradle-guide plugin (#1373)

Author: svc-excavator-bot

build.gradle

@@ -12,7 +12,7 @@ buildscript {
         classpath 'com.palantir.gradle.externalpublish:gradle-external-publish-plugin:1.19.0'
         classpath 'com.palantir.gradle.failure-reports:gradle-failure-reports:1.14.0'
         classpath 'com.palantir.gradle.gitversion:gradle-git-version:4.0.0'
-        classpath 'com.palantir.gradle.guide:gradle-guide:1.8.0'
+        classpath 'com.palantir.gradle.guide:gradle-guide:1.9.0'
         classpath 'com.palantir.gradle.idea-configuration:gradle-idea-configuration:0.5.0'
         classpath 'com.palantir.gradle.jdks:gradle-jdks:0.69.0'
         classpath 'com.palantir.gradle.jdkslatest:gradle-jdks-latest:0.21.0'