Bump com.google.googlejavaformat:google-java-format (#252)

Bumps [com.google.googlejavaformat:google-java-format](https://github.com/google/google-java-format) from 1.28.0 to 1.31.0.
- [Release notes](https://github.com/google/google-java-format/releases)
- [Commits](google/google-java-format@v1.28.0...v1.31.0)

---
updated-dependencies:
- dependency-name: com.google.googlejavaformat:google-java-format
  dependency-version: 1.31.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

build.gradle

@@ -19,7 +19,7 @@ repositories {
 dependencies {
     implementation "fr.inria.gforge.spoon:spoon-core:11.0.0"
     implementation "com.google.code.gson:gson:2.13.2"
-    implementation "com.google.googlejavaformat:google-java-format:1.28.0"
+    implementation "com.google.googlejavaformat:google-java-format:1.31.0"
     implementation "org.slf4j:slf4j-api:2.0.17"
     implementation "ch.qos.logback:logback-core:1.5.20"
     implementation "ch.qos.logback:logback-classic:1.5.20"