QEMU target support use Test or CI

[zhang-wenchao]

1. https://docs.zephyrproject.org/latest/develop/getting_started/index.html

2. https://docs.zephyrproject.org/latest/boards/qemu/index.html

3. ARM Cortex-M3 Emulation (QEMU)

4. RISCV32 Emulation (QEMU)

ref:

https://github.com/zephyrproject-rtos/docker-image

[septshep]

I plan the goals for this task as follows:

1. QEMU Configuration: Set up the QEMU environment to support the target platform.
2. GitHub Actions Configuration: Integrate QEMU into the CI pipeline to ensure automated test support.
3. Documentation Update: Update docs/develop/setup.md with detailed instructions for QEMU setup and usage.
4. Devcontainer Support: Configure a devcontainer so developers can use QEMU directly within the container without setting up a local C++ environment, improving the development experience.

These tasks aim to simplify the development and testing process and reduce the complexity of environment setup.