2.0.0: Better Mongo integration & more

• Add new methods for managing collections
• Return results of MagicCollection methods
• Make MongoClient accessible
• Use Optionals
• SingleMongo and MagicDatabase
• Make findOneAndUpsert(...) return non-null
• Add MongoBsonBuilder#clone()
• Add MagicCollection#insertOneReturnId(T)
• Update Gradle
  • 8.10 -> 8.10.2
• Update mongodb-driver-sync and annotations
  • mongodv-driver-sync: 5.1.4 -> 5.2.0
  • annotations: 24.1.0 -> 25.0.0
• Update Gradle plugins
  • Gradle Galaxy: 1.2.3 -> 1.3.2
  • Shadow: 8.3.0 -> 8.3.3
• Bump version (1.2.2 -> 2.0.0)

Full Changelog: 1.2.2...2.0.0