Update plugin io.freefair.maven-publish-java to v8.12

Author: renovate[bot]

build.gradle

@@ -17,7 +17,7 @@
 plugins { 
     id "org.springframework.boot" version "3.4.0"
     id "io.freefair.lombok" version "8.11"
-    id "io.freefair.maven-publish-java" version "8.11"
+    id "io.freefair.maven-publish-java" version "8.12"
     id "io.spring.dependency-management" version "1.1.7" 
     id "org.owasp.dependencycheck" version "11.1.1"
     id "java"