Alpine 3.18.0 was released yesterday. Could we generate the new images for it?

[AttilaTheFun]

https://alpinelinux.org/posts/Alpine-3.18.0-released.html

[yosifkit]

Dockerfiles are already updated: #460

https://github.com/docker-library/golang/tree/713124c10e228b178e92ecf949e86c16bc3f3057#see-a-change-merged-here-that-doesnt-show-up-on-docker-hub-yet