expiresAt() sets a floating point value

[stefanplk3]

    $token = $config->builder()
        ->issuedBy('xy') // iss
        ->permittedFor('xy') // aud
        ->relatedTo('xy') // sub
        ->withClaim('room', '*')
        ->expiresAt($now)
        ->withHeader('kid', 'xy')
        ->getToken($config->signer(), $config->signingKey());

$token->toString() now has a floating point value in the "exp" field:

eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiIsImtpZCI6Inh5In0.eyJpc3MiOiJ4eSIsImF1ZCI6Inh5Iiwic3ViIjoieHkiLCJyb29tIjoiKiIsImV4cCI6IjE2MTQxODI0MTIuMTI1NzgwIn0.oocn8Wg3RB8bGPeLNEPDkis9YwWPRIuNxxlXI2m3so8

{
"iss": "xy",
"aud": "xy",
"sub": "xy",
"room": "*",
"exp": "1614182412.125780"
}

[lcobucci]

Duplicate of #618

Also take a look at #623

[lcobucci]

Hello folks, thanks to @yassinrais we managed to fix this compatibility issue whilst still preserving the microseconds precision. We already released new versions to solve the problem.