[Task] Publish Rust docs

[eike-hass]

Description

Since we can't publish the library to crates.io (because the SDK is not on crates), we need to publish the docs somewhere else.

Motivation

Provide versioned docs for implementers

Resources

The SDK use GitHub pages to host docs here

Change checklist

Add an x to the boxes that are relevant to your changes, and delete any items that are not.

• The feature or fix is implemented in Rust and across all bindings whereas possible.
• The feature or fix has sufficient testing coverage
• All tests and examples build and run locally as expected
• Every piece of code has been document according to the documentation guidelines.
• If conceptual documentation (mdbook) and examples highlighting the feature exist, they are properly updated.
• If the feature is not currently documented, a documentation task Issue has been opened to address this.