Update to Alpine 3.23 following upstream

Author: PhrozenByte

container.env

@@ -6,6 +6,6 @@ TAGS="${TAGS:-latest}"
 MERGE_IMAGE_GIT_REPO="https://github.com/nextcloud/docker.git"
 MERGE_IMAGE_GIT_REF="refs/heads/master"
 MERGE_IMAGE_BUD_CONTEXT="31/fpm-alpine"
-MERGE_IMAGE_BASE_IMAGE_PATTERN="php:8.3-fpm-alpine3.22"
+MERGE_IMAGE_BASE_IMAGE_PATTERN="php:8.3-fpm-alpine3.23"
 
 BASE_IMAGE="ghcr.io/sgsgermany/php-fpm:v8.3"