feat(admin): add s3-json as possible service destination

Description

feat(admin): add s3-json as possible service destination

• adds s3-json as available destination
• within this repository, it copies behaviour of s3 destination.

How to test

Deploy on devel or run locally (can also deploy perun!4588 (merged) to test them together) and check that you can select s3-json as service destination on facility and that invalid destinations are flagged as such and don't allow you to add them.

Author's checklist

• I have followed the contribution guidelines
• This MR has been tested or does not change functionality
• I have added relevant merge request dependencies (if this MR has any)
• I have added the correct labels
• I have assigned reviewers (if any are relevant)
• I have edited the documentation (if the changes require it) or I have noted the need for the change if I do not have access to the documentation
• I have marked all introduced BREAKING CHANGES or necessary DEPLOYMENT NOTES in the commit message(s)

Reviewer's checklist

• This MR has been tested or does not change functionality
• This MR has correct commit message format

Other information

Merge after perun!4588 (merged)

Related issues

Closes STR-1581