Add Dockerfile build for release candidate

[MarcoDotIO]

Implement Dockerfile build for Charm's release build. Used to automate the process of building Charm.

[misson20000]

When I run this, I get

Setting up systemd (255.4-1ubuntu8.2) ...
Created symlink /etc/systemd/system/getty.target.wants/[email protected] → /usr/lib/systemd/system/[email protected].
Created symlink /etc/systemd/system/multi-user.target.wants/remote-fs.target → /usr/lib/systemd/system/remote-fs.target.
Created symlink /etc/systemd/system/sysinit.target.wants/systemd-pstore.service → /usr/lib/systemd/system/systemd-pstore.service.
Initializing machine ID from random generator.
mv: cannot move '/etc/default/locale' to a subdirectory of itself, '/etc/locale.conf'
dpkg: error processing package systemd (--configure):
 installed systemd package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
 systemd
E: Sub-process /usr/bin/dpkg returned an error code (1)
The command '/bin/sh -c apt-get update && apt-get install -y     libgtk-4-dev     libadwaita-1-dev     libgdk-pixbuf2.0-dev     libatk1.0-dev     libcairo2-dev     libjpeg8-dev     libpango1.0-dev     libgif-dev     libgraphene-1.0-dev     build-essential     g++     curl     git     pkg-config     && rm -rf /var/lib/apt/lists/*' returned a non-zero code: 100
Docker image build failed.