Improve Import/Export dev docs
<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=391954) </details> <!--IssueSummary end--> The dev docs mention that the version should be bumped every time a breaking change is introduced. However, the version no longer seems to be bumped. ## Proposed solution Remove the section from the dev documentation
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