Upgrade nginx (1.23.1 -> 1.23.2)

roles/matrix-nginx-proxy/defaults/main.yml

@@ -1,7 +1,7 @@
 ---
 # Project source code URL: https://github.com/nginx/nginx
 matrix_nginx_proxy_enabled: true
-matrix_nginx_proxy_version: 1.23.1-alpine
+matrix_nginx_proxy_version: 1.23.2-alpine
 
 # We use an official nginx image, which we fix-up to run unprivileged.
 # An alternative would be an `nginxinc/nginx-unprivileged` image, but