Fix zip file export

Summary

Changes I found useful while working on https://gitlab.com/linkahead/linkahead-webui/-/issues/254 ("Download files referenced in the table" fails).

• Updated a few Docker image versions
• Fixed wrong import name
• Using get_entity_by_id
• Dummy test

Focus

NA

Test Environment

Run make test-sss, after install the requirements.

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CHANGELOG.md

@@ -16,6 +16,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed ###
 
+- [#254](https://gitlab.com/linkahead/linkahead-webui/-/issues/254) "Download files referenced in the table" failed
+
 ### Security ###
 
 ### Documentation ###