Update the changelog

integrations/mongodb_atlas/CHANGELOG.md

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+# Changelog
+
+## [unreleased]
+
+### 🚀 Features
+
+- Defer the database connection to when it's needed (#770)
+
+### 🐛 Bug Fixes
+
+- Pass empty dict to filter instead of None (#775)
+
+## [integrations/mongodb_atlas-v0.2.1] - 2024-04-09
+
+### 🐛 Bug Fixes
+
+- Fix haystack-ai pin (#649)
+
+
+
+### 📚 Documentation
+
+- Disable-class-def (#556)
+
+## [integrations/mongodb_atlas-v0.2.0] - 2024-03-09
+
+### 📚 Documentation
+
+- Mongo atlas (#534)
+- Final API docs touches (#538)
+
+### Mongodb
+
+- Improve example (#546)
+
+## [integrations/mongodb_atlas-v0.1.0] - 2024-02-23
+
+### 🚀 Features
+
+- MongoDBAtlas Document Store (#413)
+- `MongoDBAtlasEmbeddingRetriever` (#427)
+
+### 🐛 Bug Fixes
+
+- Remove filters from `MongoDBAtlasDocumentStore.count()` method (#430)
+- Fix order of API docs (#447)
+
+This PR will also push the docs to Readme
+- Fix pyproject for mongodbatlas (#478)
+
+
+
+### 📚 Documentation
+
+- Update category slug (#442)
+
+<!-- generated by git-cliff -->