Migrate to embedded-hal v1

[niondir]

Since the embedded-hal v1 is released now, it would be great to have support in FreeRTOS-rust

See: https://blog.rust-embedded.org/embedded-hal-v1/

Since it's only a dependency of the examples. I assume only the examples need to be adjusted.

[TakashiKusachi]

Hello @niondir, @schteve and all.
I'm very interested in this project. So, I hope I can contribute to this project from this issue.

However, I have some question for this issue,
Firstly, What the goal of this task.
e.g.,

• update the example of stm32-cortex-m4-blackpill only. I think CI test is passed with this fix.
• update the example of all examples existed in this repository.

[TakashiKusachi]

currently, I created the modification on this MR TakashiKusachi#1 based on ("update the example of stm32-cortex-m4-blackpill only. I think CI test is passed with this fix.")