TokenToContext should not return error when the token is either non-existent or validated

[satoufuyuki]

To Reproduce
Steps to reproduce the behavior:

1. Use auto auth
2. Get token

Expected behavior
TokenToContext should not return error when the token is either non-existent or validated

Screenshots
If applicable, add screenshots to help explain your problem.

Framework version (please check if it happens with the last
Fuego version before posting): v0.17.0

Go version (please check if it happens with the last Go version before posting): 1.23.4

Additional context

fuego/security.go

Line 215 in 1978d0e

SendJSONError(w, nil, err)

this shouldn't return the error, because expired key also throws an error.

[EwenQuim]

I'll fix it this week