Autogenerate jwks

[firyx]

PULL REQUEST

Overview

This PR adds autogeneration and saving accounts cluster jwks.json config file to LastPass.

Example for Visual Changes

Checklist

• [x] All git commits are signed. (REQUIRED)
• [x] All new methods or updated methods have clear docstrings.
• [x] Testing added or updated for new methods.
• [x] Verified if any changes impact the WebPortal Health Checks.
• [x] Appropriate documentation updated.
• [ ] Changelog file created.

Issues Closed

Closes: SKY-1264

[linear[bot]]

SKY-1264 Autogenerate JWKS file

* autogenerate content * safe to LastPass * test portal setup end-to-end

[firyx]

This PR should be merged once #284 is merged.

[firyx]

DRAFT: oneliner generates just one key in jwks.json - which seems not to be correct.

[firyx]

DRAFT: oneliner generates just one key in jwks.json - which seems not to be correct.

one key should be enough (according to Ivo)