fix(deps): bump org.gradlex:extra-java-module-info from 1.8 to 1.9

Bumps [org.gradlex:extra-java-module-info](https://github.com/gradlex-org/extra-java-module-info) from 1.8 to 1.9.
- [Release notes](https://github.com/gradlex-org/extra-java-module-info/releases)
- [Changelog](https://github.com/gradlex-org/extra-java-module-info/blob/main/CHANGELOG.md)
- [Commits](gradlex-org/extra-java-module-info@v1.8...v1.9)

---
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] <[email protected]>

build.gradle

@@ -23,7 +23,7 @@ buildscript {
 	dependencies {
 		classpath "biz.aQute.bnd:biz.aQute.bnd.gradle:6.4.0"
 		classpath "org.xtext:xtext-gradle-plugin:4.0.0"
-		classpath "org.gradlex:extra-java-module-info:1.8"
+		classpath "org.gradlex:extra-java-module-info:1.9"
 	}
 }