src: don't point to out of scope variable

Coverity reported this. The addr pointer is passed to
req_wrap->Dispatch(). By the time this happens, the value
that addr points to, addr_storage, is out of scope. This
commit remedies that.

PR-URL: https://github.com/nodejs/node/pull/27070


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: Minwoo Jung <minwoo@nodesource.com>