[java] LocalVariableCouldBeFinal false-positive with lombok.val

[Miuler]

Rule:LocalVariableCouldBeFinal

Please provide the rule name and a link to the rule documentation:
https://pmd.github.io/pmd/pmd_rules_java_codestyle.html#methodargumentcouldbefinal

Description: lombok.val is equivalet to final class

Code Sample demonstrating the issue:

import lombok.val;

val test04 = logicTestService.test();
// This is equivalent to:
// final String test04 = logicTestService.test();

Error:

LocalVariableCouldBeFinal: Local variable 'test04' could be declared final