[management] Feature - Migration to Zitadel v2 API

[remipcomaite]

Describe your changes

Hello,

I propose a PR to migrate to Zitadel API v2.

This allows to authenticate users from different organizations.

The endpoint for the management API changes from "/management/v1" to "/v2".

Issue ticket number and link

Checklist

• Is it a bug fix
• Is a typo/documentation fix
• Is a feature enhancement
• It is a refactor
• Created tests that fail without the change (if possible)
• Extended the README / documentation, if necessary

[CLAassistant]

All committers have signed the CLA.

[braginini]

Thank you for the contribution @remipcomaite
Is this backwards compatible with the previous version?

[remipcomaite]

Hello @braginini ,

The code is not backwards compatible because V1 of the API will be deprecated in the long term.
I changed the endpoints and some properties to match the API calls with V2.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

Comments suppressed due to low confidence (1)

management/server/idp/zitadel.go:73

• The variable name 'ID' has been changed to 'userId'. Ensure that this renaming is consistently applied throughout the codebase to avoid confusion.

ID: string `json:"userId"`