Bump detekt-gradle-plugin from 1.8.0 to 1.9.1

Bumps detekt-gradle-plugin from 1.8.0 to 1.9.1.

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

build.gradle

@@ -26,7 +26,7 @@ buildscript {
         }
         classpath 'gradle.plugin.com.github.spotbugs:spotbugs-gradle-plugin:1.6.6'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath "io.gitlab.arturbosch.detekt:detekt-gradle-plugin:1.8.0"
+        classpath "io.gitlab.arturbosch.detekt:detekt-gradle-plugin:1.9.1"
         classpath "commons-httpclient:commons-httpclient:3.1@jar" // remove after entire switch to lib v2
         classpath 'com.karumi:shot:3.1.0'
     }