upgrade spotbugs plugin

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1901878 13f79535-47bb-0310-9956-ffa450edef68

build.gradle

@@ -39,7 +39,7 @@ plugins {
     id "com.dorongold.task-tree" version "2.1.0"
     id('org.nosphere.apache.rat') version '0.7.1'
     id 'distribution'
-    id "com.github.spotbugs" version "5.0.7"
+    id "com.github.spotbugs" version "5.0.8"
     id 'com.github.jk1.dependency-license-report' version '2.0'
 }