fix: add missing kid to JWT header

[dbarrosop]

PR Type

Bug fix

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Description

• Added a kid field to the JWTGetter struct to include the Key ID in the JWT header.
• Initialized the kid field in the NewJWTGetter function using the jwtSecret.KeyID.
• Modified the GetToken method to include the kid in the JWT header if it is not empty.

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Changes walkthrough 📝

	Relevant files
Bug fix	jwt.go Add missing `kid` to JWT header in `JWTGetter`                      go/controller/jwt.go Added kid field to JWTGetter struct. Initialized kid field in NewJWTGetter function. Included kid in JWT header if present in GetToken method. +5/-0

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PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Possible Bug Ensure that the kid field is correctly populated and used in the JWT header. Verify that jwtSecret.KeyID is always set and valid, as an empty or incorrect kid could lead to token validation issues. Code Smell Consider adding unit tests to validate the inclusion of the kid field in the JWT header. This will help ensure that the new functionality works as expected and prevent future regressions.

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