Fix embedded-io features to use defmt-03

[mailiam]

Update the embedded-io and embedded-io-async dependencies to utilize the defmt-03 instead of unreachable defmt

Please refer to the document

[bugadani]

Good spot, maybe we should make the CI make more noise (https://github.com/esp-rs/esp-generate/actions/runs/14257287711/job/39962175475)

[mailiam]

Good spot, maybe we should make the CI make more noise (https://github.com/esp-rs/esp-generate/actions/runs/14257287711/job/39962175475)

Haha CI was working correctly 😁

Here's GitHub doc about scheduled action notification:

Notifications for scheduled workflows are sent to the user who initially created the workflow. If a different user updates the cron syntax in the workflow file, subsequent notifications will be sent to that user instead. If a scheduled workflow is disabled and then re-enabled, notifications will be sent to the user who re-enabled the workflow rather than the user who last modified the cron syntax.

Or perhaps build status on README.md?

Or something like creating issue when scheduled build fails?

[SergioGasquez]

LGTM! Thanks for the fix!

I just opened #158 where we will improve the CI situation