Follow-up from "Create DesiredConfigFetcher and ConfigToApplyBuilder in RemoteDevelopment::WorkspaceOperations::Reconcile::Output"
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The following discussion from !194727 should be addressed:
- [ ] @GitLabDuo started a [discussion](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/194727#note_2568213303): (+2 comments)
> Base64 encoding is performed without validation of the input data. If the workspace variable values contain invalid UTF-8 or binary data, this could cause encoding issues.
>
> ```suggestion:-0+0
> transformed_data = data.transform_values do |value|
> Base64.strict_encode64(value.to_s.force_encoding('UTF-8'))
> end
> ```
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