Upgrade to ubuntu 24.04 and mapserver 8.2

Update all dependencies and minimize size of final image

mapserver/Dockerfile

@@ -7,8 +7,6 @@ ENV LANG=C.UTF-8
 ENV LC_ALL=C.UTF-8
 
 RUN apt-get update && apt-get install -y \
-#  gosu \
-#  pwgen \
   tzdata \
   gcc \
   g++ \
@@ -37,7 +35,6 @@ RUN apt-get update && apt-get install -y \
   libfcgi-dev \
   libgeos++-dev \
   libpq-dev \
-#  postgresql-server-dev-all \
   libgif-dev \
   && rm -rf /var/lib/apt/lists/*