Fish 383 working oauth for azure ad b2c

[aubi]

Make the @OpenIdAuthenticationDefinition working also for Azure AD B2C, basically make parsing of expires_in more tolerant, expected number but provided a string.
Reproducing application is attached to the Jira ticket.

@OpenIdAuthenticationDefinition(
        providerURI = "https://login.microsoftonline.com/${APP_ID}/",
        providerMetadata = @OpenIdProviderMetadata(
                // MS "supports" only openid, others fail validation
                scopesSupported = {"email", "profile", "openid"}
        ),
        clientId = "${CLIENT_ID}",
        clientSecret = "{CLIENT_SECRET}",
        redirectURI = "${baseURL}/callback",
        logout = @LogoutDefinition(notifyProvider = true, redirectURI = "http://localhost:8080/OpenIdReproducer/"),
        // long enough timeouts to be sure
        jwksConnectTimeout = 2_000,
        jwksReadTimeout = 2_000
)

Both Login and logout work well.

[breakponchito]

LGTM