ci: Use trusted publishing for rattler crates

[pavelzw]

Description

Fixes #{issue}

How Has This Been Tested?

⚠️ not at all

we would need to add this repo to the crates.io settings

needs a release to try it out...

AI Disclosure

• This PR contains AI-generated content.
  • I have tested any AI-generated content in my PR.
  • I take responsibility for any AI-generated content in my PR.

Tools: codex

move this repo to trusted publishing https://rust-lang.github.io/rfcs/3691-trusted-publishing-cratesio.html#example-github-actions-workflow

...
why did you create a python script instead of using rust-lang/crates-io-auth-action?

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added sufficient tests to cover my changes.

[pavelzw]

this workflow already uses id-token: write because of octo-sts