Describe the bug

When the CLI version does not match the requirement. Users get the error message

Error: failed to get datasets, reason: server returned status 412

This error message is not very informative.

It should show the original error message. e..g

Error: Your sda-cli client version is outdated, please update to at least version 'v0.3.0'.

Steps to reproduce

Run the following command

./sda-cli-v0.2.1 --config s3cmd-bp-download.conf list  --url https://download.bp.nbis.se  --datasets 

You get

Error: failed to get datasets, reason: server returned status 412

Expected behavior

• SDA-CLI show the informative error message when the CLI version does not meet the requirement
• Tests verifying the fix are added

Demo

Run an old version of sda-cli, show the incorrect message. Run the new version, show the correct message.