Example repository broken

[taran2k]

The example repository provided seems to be broken as a result of the upgrade to JWT v5. Running the example code results in the following error:

# github.com/golang-jwt/jwt/v5
vendor/github.com/golang-jwt/jwt/v5/token.go:20:9: error: expected signature or type name
   20 |         crypto.PublicKey | []uint8
      |         ^