[1.4.17] Stateless - accessToken not refresh before being expired

await auth.api.getAccessToken({
  body: {
    providerId: 'keycloak',
  },
  headers: ctx.headers,
});

export const auth = betterAuth({
    secret: env.BETTER_AUTH_SECRET,
    baseURL: env.BETTER_AUTH_URL,

    plugins: [
        genericOAuth({
            config: [
                keycloak({
                    clientId: env.BETTER_AUTH_KEYCLOAK_CLIENT_ID,
                    clientSecret: env.BETTER_AUTH_KEYCLOAK_CLIENT_SECRET,
                    issuer: env.BETTER_AUTH_KEYCLOAK_ISSUER,
                }),
            ],
        }),

        // make sure this is the last plugin in the array
        // https://www.better-auth.com/docs/integrations/next#server-action-cookies
        nextCookies(),
    ],
});