build(deps): bump org.junit:junit-bom in /flipt-client-java (#466)

Bumps [org.junit:junit-bom](https://github.com/junit-team/junit5) from 5.11.2 to 5.11.3.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.11.2...r5.11.3)

---
updated-dependencies:
- dependency-name: org.junit:junit-bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

flipt-client-java/build.gradle

@@ -26,7 +26,7 @@ dependencies {
     implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-xml:2.18.0'
     implementation 'com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.18.0'
     implementation 'net.java.dev.jna:jna-platform:5.15.0'
-    testImplementation platform('org.junit:junit-bom:5.11.2')
+    testImplementation platform('org.junit:junit-bom:5.11.3')
     testImplementation 'org.junit.jupiter:junit-jupiter'
 }