Bump org.mongodb:mongodb-driver-sync in /modules/mongodb

Bumps [org.mongodb:mongodb-driver-sync](https://github.com/mongodb/mongo-java-driver) from 5.1.4 to 5.6.0.
- [Release notes](https://github.com/mongodb/mongo-java-driver/releases)
- [Commits](mongodb/mongo-java-driver@r5.1.4...r5.6.0)

---
updated-dependencies:
- dependency-name: org.mongodb:mongodb-driver-sync
  dependency-version: 5.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

modules/mongodb/build.gradle

@@ -7,7 +7,7 @@ dependencies {
 
     testImplementation 'org.junit.jupiter:junit-jupiter:5.13.4'
     testImplementation 'org.junit.jupiter:junit-jupiter-params:5.13.4'
-    testImplementation("org.mongodb:mongodb-driver-sync:5.1.4")
+    testImplementation("org.mongodb:mongodb-driver-sync:5.6.0")
     testImplementation 'org.assertj:assertj-core:3.27.4'
 }