Update embedded-hal to version 1.0.0-alpha.5

[eldruin]

I will add support for embedded-hal 0.2.x in parallel as described here. This PR contains some preparation for that.

[rust-highfive]

r? @nastevens

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[eldruin]

It seems the MSRV build is broken because bitflags updated their MSRV. The same thing should happen for spidev, i2cdev and gpio-cdev.

[eldruin]

Alright, I have updated the MSRV and as well as gpio-cdev, spidev and i2cdev to their newly-released versions. bors try

[bors[bot]]

try

Timed out.

[ryankurte]

hey thanks for your work! i've updated embedded-hal-compat to 1.0.0-alpha.5, maybe y'all disagree but my preference would be to provide backwards compat separately via that than to double the work / loc for the HALs? (and if that's the case, we could update this to match)

[eldruin]

That is also a possibility. That would certainly do away with the concern of how long should we support 0.2.x in HALs and what that means for SemVer. Since removing it would be a breaking change, it may be better not to do it at all. Anyway, that would be an addition and I think we should merge this and release a 0.4.0-alpha.1

[eldruin]

bors try

[bors[bot]]

try

Build succeeded:

• CI (1.46.0, x86_64-unknown-linux-gnu)
• CI (stable, x86_64-unknown-linux-gnu)
• CI (stable, armv7-unknown-linux-gnueabihf)

[bors[bot]]

Build succeeded:

• CI (1.46.0, x86_64-unknown-linux-gnu)
• CI (stable, armv7-unknown-linux-gnueabihf)
• CI (stable, x86_64-unknown-linux-gnu)