Cloudflare R2 instrumentation #20836

Problem Statement

R2 bucket API is currently not instsrumented as env.MY_BUCKET.put(key, request.body) wouldn't add any span.

Workers API: https://developers.cloudflare.com/r2/get-started/workers-api/

Methods: get, head, put, delete, list, createMultipartUpload, resumeMultipartUpload

Docs: https://developers.cloudflare.com/r2/

Solution Brainstorm

Like with the queue, we need to add another check for the R2 bucket:

Additional Context

Cross-check with Cloudflare's built-in tracing about their metadata and span description

Priority

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