Bump org.gradlex.extra-java-module-info from 1.4.2 to 1.8

Bumps org.gradlex.extra-java-module-info from 1.4.2 to 1.8.

---
updated-dependencies:
- dependency-name: org.gradlex.extra-java-module-info
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

build.gradle

@@ -3,7 +3,7 @@ plugins {
     id 'maven-publish'
     id 'signing'
     id 'checkstyle'
-    id 'org.gradlex.extra-java-module-info' version '1.4.2'
+    id 'org.gradlex.extra-java-module-info' version '1.8'
 }
 
 apply plugin: 'maven-publish'