Keep JWT claims in the same order

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 79.66102% with 12 lines in your changes missing coverage. Please review.

Project coverage is 57.08%. Comparing base (579d467) to head (86dc7e9). Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
jwt/jwt_writer.go	83.33%	2 Missing and 2 partials :warning:
jwt/claims.go	88.23%	1 Missing and 1 partial :warning:
...en_authentication/jwt/not_verified/not_verified.go	66.66%	1 Missing and 1 partial :warning:
...oken_authentication/jwt/weak_secret/weak_secret.go	66.66%	1 Missing and 1 partial :warning:
jwt/without_signature.go	0.00%	1 Missing :warning:
...can/broken_authentication/jwt/alg_none/alg_none.go	50.00%	0 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #195 +/- ## ========================================== + Coverage 56.79% 57.08% +0.28% ========================================== Files 83 84 +1 Lines 2576 2612 +36 ========================================== + Hits 1463 1491 +28 - Misses 1013 1017 +4 - Partials 100 104 +4 ```

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