mod_http_oauth2: Fix inclusion of role in refreshed access tokens `refresh_token_info` does not carry the role, and due to behavior prior to prosody trunk rev a1ba503610ed it would have reverted to the users' default role. After that it instead issues a token without role which is thus not usable with e.g. mod_rest

-- Provides total CPU time, useful for DERIVE

module:set_global();

module:provides("statistics", {
	statistics = {
		cpu_total = { -- milliseconds of CPU time used
			get = function()
				return os.clock() * 1000;
			end
		}
	}
});