feat: Verify compatibility of TeamForCapella model links at all times

[MoritzWeber0]

Due to the stricter verification it's no longer possible to update the version of TeamForCapella servers. A version update of the TeamForCapella server would indicate that all linked repositories are migrated to the new Capella version automatically. This is not the usual update process. Instead, models are migrated one by one. This would be realized with the registration of another TeamForCapella server. Repositories are then slowly moved over. When the migration is finished, the old TeamForCapella server can be removed. The only valid use case I'm aware of that would require the modification of the version is that the user selected a wrong version during creation. In this case, the server has to removed and the integration has be created again.

The PR also fixes a bug that t4c models couldn't be moved to another T4C instance. The submit button of the T4C repository creation is now disabled when a request is running to avoid double-requests.

• [x] Disable updates of the TeamForCapella server version
• [ ] Only display compatible servers during linking
• [ ] Update backend route to only allow compatible version during linking
• [ ] Verify compatibility when model version is updated
• [x] Add tests for T4C repository <> model links

Is the last part of #1739. Resolves #1739.

[github-actions[bot]]

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 84.50%. Comparing base (bc0ea05) to head (d133ed0). Report is 2 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1791 +/- ## ========================================== + Coverage 84.06% 84.50% +0.43% ========================================== Files 186 186 Lines 6144 6176 +32 Branches 676 678 +2 ========================================== + Hits 5165 5219 +54 + Misses 831 807 -24 - Partials 148 150 +2 ```

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[sonarcloud[bot]]

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 SonarCloud