update remaining docker images to alpine 3.21

Signed-off-by: Simon L. <szaimen@e.mail.de>

Containers/apache/Dockerfile

@@ -2,7 +2,7 @@
 FROM caddy:2.8.4-alpine AS caddy
 
 # From https://github.com/docker-library/httpd/blob/master/2.4/alpine/Dockerfile
-FROM httpd:2.4.62-alpine3.20
+FROM httpd:2.4.62-alpine3.21
 
 COPY --from=caddy /usr/bin/caddy /usr/bin/caddy
 

Containers/imaginary/Dockerfile

@@ -1,7 +1,7 @@
 # syntax=docker/dockerfile:latest
-FROM golang:1.23.4-alpine3.20 AS go
+FROM golang:1.23.4-alpine3.21 AS go
 
-ENV IMAGINARY_HASH=8f36a26c448be8c151a3878404b75fcd1cd3cf0c
+ENV IMAGINARY_HASH=8f36a26c448be8c151a3878404b75fcd1cd3cf0c
 
 RUN set -ex; \
     apk add --no-cache \

Containers/mastercontainer/Dockerfile

@@ -5,8 +5,8 @@ FROM docker:27.4.0-cli AS docker
 # Caddy is a requirement
 FROM caddy:2.8.4-alpine AS caddy
 
-# From https://github.com/docker-library/php/blob/master/8.3/alpine3.20/fpm/Dockerfile
-FROM php:8.3.14-fpm-alpine3.20
+# From https://github.com/docker-library/php/blob/master/8.3/alpine3.21/fpm/Dockerfile
+FROM php:8.3.14-fpm-alpine3.21
 
 EXPOSE 80
 EXPOSE 8080

Containers/nextcloud/Dockerfile

@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:latest
-FROM php:8.3.14-fpm-alpine3.20
+FROM php:8.3.14-fpm-alpine3.21
 
 ENV PHP_MEMORY_LIMIT=512M
 ENV PHP_UPLOAD_LIMIT=16G

Containers/postgresql/Dockerfile

@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:latest
-# From https://github.com/docker-library/postgres/blob/master/16/alpine3.20/Dockerfile
+# From https://github.com/docker-library/postgres/blob/master/16/alpine3.21/Dockerfile
 FROM postgres:16.6-alpine
 
 COPY --chmod=775 start.sh /start.sh

Containers/talk-recording/Dockerfile

@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:latest
-FROM python:3.13.1-alpine3.20
+FROM python:3.13.1-alpine3.21
 
 COPY --chmod=775 start.sh /start.sh
 COPY --chmod=775 healthcheck.sh /healthcheck.sh