Merge branch 'dev' into df/#891_gradle8x

# Conflicts:
#	build.gradle

Author: danielfeismann

build.gradle

@@ -5,7 +5,7 @@ plugins {
   id 'signing'
   id 'pmd' // code check, working on source code
   id 'com.diffplug.spotless' version '6.22.0' //code format
-  id 'com.github.spotbugs' version '5.1.3' // code check, working on byte code
+  id 'com.github.spotbugs' version '5.2.1' // code check, working on byte code
   id 'de.undercouch.download' version '5.5.0'
   id 'kr.motd.sphinx' version '2.10.1' // documentation generation
   id 'jacoco' // java code coverage plugin
@@ -80,7 +80,7 @@ dependencies {
   testImplementation "org.testcontainers:couchbase:$testcontainersVersion"
 
   // logging
-  implementation platform('org.apache.logging.log4j:log4j-bom:2.20.0')
+  implementation platform('org.apache.logging.log4j:log4j-bom:2.21.0')
   implementation 'org.apache.logging.log4j:log4j-api' // log4j
   implementation 'org.apache.logging.log4j:log4j-core' // log4j
   implementation 'org.apache.logging.log4j:log4j-slf4j-impl' // log4j -> slf4j