Converting anyhow to this-error for re_renderer Renderer::draw

[chinepun]

What

• Improves Use of thiserror in crates(#1845)

Checklist

• I have read and agree to Contributor Guide and the Code of Conduct
• I've included a screenshot or gif (if applicable)
• I have tested [demo.rerun.io](https://demo.rerun.io/pr/{{ pr.number }}) (if applicable)

• [PR Build Summary](https://build.rerun.io/pr/{{ pr.number }})
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• [Examples preview](https://rerun.io/preview/{{ pr.commit }}/examples)
• Recent benchmark results
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[Wumpf]

Thanks for contributing!

Can you check if we can replace the anyhow based QueueableDrawDataError::DrawError variant already now? If not we can punt on that, but it would create a weird name-clash (unclear what's the difference between QueueableDrawDataError::DrawError and QueueableDrawDataError::DrawRenderer). But I think this can be replaced now (see comment)

CI is having issues right now with PRs from forks, looking into getting some coverage

[Wumpf]

CI is sadly a lost cause at the moment, only PRs from inside the repo work correctly right now. I'll run some tests locally later. See #1994. We'll look into that soon'ish

[Wumpf]

nice, thanks!

[Wumpf]

counter checked locally for any compilation issues etc. since our ci still doesn't work well with forked repos (we'll look into this soonish)