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

@@ -3,7 +3,7 @@ description = "Testcontainers :: MongoDB"
 dependencies {
     api project(':testcontainers')
 
-    testImplementation("org.mongodb:mongodb-driver-sync:5.1.4")
+    testImplementation("org.mongodb:mongodb-driver-sync:5.6.0")
 }
 
 tasks.japicmp {