feat: Updated django and wagtail to their latest versions

Dockerfile

@@ -1,24 +1,24 @@
-# Use an official Python runtime based on Debian 10 "buster" as a parent image.
-FROM python:3.8.1-slim-buster
+# Use an official Python runtime based on Debian 12 "bookworm" as a parent image.
+FROM python:3.12-slim-bookworm
 
 # Add user that will be used in the container.
 RUN useradd wagtail
 
 # Port used by this container to serve HTTP.
-EXPOSE 80
+EXPOSE 8000
 
 # Set environment variables.
 # 1. Force Python stdout and stderr streams to be unbuffered.
 # 2. Set PORT variable that is used by Gunicorn. This should match "EXPOSE"
 #    command.
 ENV PYTHONUNBUFFERED=1 \
-    PORT=80
+    PORT=8000
 
 # Install system packages required by Wagtail and Django.
 RUN apt-get update --yes --quiet && apt-get install --yes --quiet --no-install-recommends \
     build-essential \
     libpq-dev \
-    libmariadbclient-dev \
+    libmariadb-dev \
     libjpeg62-turbo-dev \
     zlib1g-dev \
     libwebp-dev \

requirements.txt

@@ -1,5 +1,5 @@
-Django>=4.2,<5.1
-wagtail>=6.1,<6.2
+Django>=5.1,<5.2
+wagtail>=6.2,<6.3
 
 dj-database-url==2.2.0
 psycopg[binary]>=3.1,<3.2