[mongodb] Remove incubating note

docs/modules/databases/mongodb.md

@@ -1,8 +1,5 @@
 # MongoDB Module
 
-!!! note
-    This module is INCUBATING. While it is ready for use and operational in the current version of Testcontainers, it is possible that it may receive breaking changes in the future. See [our contributing guidelines](/contributing/#incubating-modules) for more information on our incubating modules policy.
-
 The MongoDB module provides two Testcontainers for MongoDB unit testing:
 
 * [MongoDBContainer](#mongodbcontainer) - the core MongoDB database