⬆️ update bindgen to latest version

[Vollbrecht]

The changelog of bindgen added a lot between 0.63 and 0.69 though it still seams to work without any problems. They introduces some new features that may be interesting in the future - like creating bindgens for C functions that are inlined in the api and thus currently not producing any bindgen output etc.

This change is also needed when esp-rs/embuild#85 lands so we have version parity between both

[ivmarkov]

I assume we can only do this once we update the bindgen util in embuild itself?

[Vollbrecht]

I assume we can only do this once we update the bindgen util in embuild itself?

We already bumped the bindgen version in embuild on master some time ago, but yes both versions need to be the same to work. Though no additional specif work is needed as far as i can see. Only if we want to use some of the newer features that were introduced.

[Vollbrecht]

as discussed in matrix we will point esp-idf-sys master to embuild git master, so we can test if it works on any platform.

[ivmarkov]

The problem is, now you need to multiply this [patch.crates-io] section in all crates. Well, if we had workspace build, then... you know what I'll say.