Expired GPG key in `php-nginx:8.3` image

[thejettdurham]

A GPG key in this image has expired. This leads to non-zero exit codes when running apt-get update in our Dockerfile

The issue can be resolved in user-land by adding the following to a Dockerfile before apt-get update

curl -O https://nginx.org/keys/nginx_signing.key && apt-key add ./nginx_signing.key

However, it would be ideal if the workaround was unnecessary :grin: