Upgrade docker images to use Ubuntu Oracular (24.04 LTS)

Since __Windows__ supports the installation of Ubuntu via [Windows Subsystem for Linux](https://en.wikipedia.org/wiki/Windows_Subsystem_for_Linux), Utopia can also be used on Windows.

Follow the [WSL Installation Guide](https://docs.microsoft.com/en-us/windows/wsl/install-win10) to install Ubuntu, then follow the instructions for Ubuntu in this README.

**Note:** Utopia is always tested against a recent Ubuntu release, currently [Ubuntu 22.04](https://releases.ubuntu.com/22.04/).

**Note:** Utopia is always tested against a recent Ubuntu release, currently [Ubuntu 24.04 (LTS)](https://releases.ubuntu.com/24.04/).

However, you can use Utopia with any earlier release, as long as the [dependencies](#dependencies) can be fulfilled.

⚠️ If you encounter difficulties, have a look at the [**troubleshooting section**](#troubleshooting).

However, notice that there might be issues during [the configuration step](#3-configure-and-build).

Have a look at the [troubleshooting](#troubleshooting) section to see how to address them.

##### On Ubuntu (22.04)

##### On Ubuntu (24.04 LTS)

```bash

apt update

apt install cmake gcc g++ gfortran git libarmadillo-dev libboost-all-dev \

| [Python3](https://www.python.org/downloads/)   | >= 3.6           | 3.10.4          | |

Utopia aims to allow rapid development, and is thus being tested only against the more recent releases of its dependencies.

Currently, Utopia is tested against the packages provided by [**Ubuntu 22.04**][Ubuntu-packages].

However the above version _requirements_ (i.e., those _enforced_ by the build system) can be fulfilled also with Ubuntu 19.10.

Currently, Utopia is tested against the packages provided by [**Ubuntu 24.04**][Ubuntu-packages].

However the above version _requirements_ (i.e., those _enforced_ by the build system) can be fulfilled also with Ubuntu 19.10; we just don't test against them any more.

To get Utopia running on a system with an earlier Ubuntu version, the above dependencies still need to be fulfilled.

You can use the [Ubuntu Package Search][Ubuntu-packages] to find the versions available on your system.

# These can be overwritten via environment variables, but ideally the defaults

# specified here should be respected. (Single source of truth.)

#

# NOTE regarding the UTOPIA_BASE_IMAGE_VERSION variable

#	* increment this upon smaller (+0.1) or larger (+1.0) changes in

#     the utopia-base.dockerfile

#   * reset to 1.0 upon bump in UTOPIA_BASE_IMAGE_UBUNTU_VERSION

#

UTOPIA_BASE_IMAGE_NAME ?= ccees/utopia-base

UTOPIA_BASE_IMAGE_UBUNTU_VERSION ?= jammy

UTOPIA_BASE_IMAGE_VERSION ?= 2.1

UTOPIA_BASE_IMAGE_UBUNTU_VERSION ?= noble

UTOPIA_BASE_IMAGE_VERSION ?= 1.0

UTOPIA_BASE_IMAGE_BUILD_OPTIONS ?=

UTOPIA_IMAGE_NAME ?= ccees/utopia

# NOTE ------------------------------------------------------------------------

# IMPORTANT:

#     Do not forget to increment the $BASE_IMAGE_VERSION variable in the

#     .gitlab-ci.yml when making changes to this file!

#     Do not forget to increment the UTOPIA_BASE_IMAGE_VERSION variable in the

#     docker/Makefile when making changes to this file!

#     The version is a simple counter that should be increment upon _any_

#     change in this file. It should be reset to 1 when a new Ubuntu version

#     is used.