feat: Enhance the auth hook func to support external JWT

[lindseysimple]

Resolves #810. Enhance the auth middleware func to support external JWT verifcation.

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• I am not introducing a breaking change (if you are, flag in conventional commit message with BREAKING CHANGE: describing the break)
• I am not introducing a new dependency (add notes below if you are)
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Codecov Report

Attention: Patch coverage is 60.00000% with 48 lines in your changes missing coverage. Please review.

Project coverage is 46.37%. Comparing base (48a6707) to head (1da7d09).

Files with missing lines	Patch %	Lines
bootstrap/handlers/auth_middleware.go	0.00%	30 Missing ⚠️
bootstrap/handlers/headers/key.go	76.47%	11 Missing and 1 partial ⚠️
bootstrap/container/clients.go	50.00%	1 Missing and 1 partial ⚠️
bootstrap/handlers/auth_func.go	0.00%	2 Missing ⚠️
bootstrap/handlers/headers/jwt.go	93.75%	1 Missing and 1 partial ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #811      +/-   ##
==========================================
+ Coverage   45.80%   46.37%   +0.57%     
==========================================
  Files          59       61       +2     
  Lines        3524     3631     +107     
==========================================
+ Hits         1614     1684      +70     
- Misses       1791     1825      +34     
- Partials      119      122       +3     

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