Easier way to update config.json

[imrehg]

Describe the feature request

Instead of downloading, editing, and uploading a JSON file, some helper function should create and upload the relevant config. This might allow more robust and easier configuration management.

Affected product area (please put an X in all the brackets that apply)

[ ] Documentation
[ ] Data access
[x] Infrastructure
[ ] Loader pipeline
[ ] Other (please describe)

Additional context