move dependency installation into Docker image, add Dockerfile
- use francescopham/zephyr-ci-docker image that installs all the necessary packages.
- remove dependencies installation fron zephyr.yml
- add Dockerfile
This allows the pipeline to work on an unprivileged user inside the container.
Relate-to: https://gitlab.eclipse.org/eclipse/oniro-core/eddie/-/issues/18
Signed-off-by: Francesco Pham francesco.pham@huawei.com