Update R2 CreateBucket to include storage class in request body

[ocsfrank]

What this PR solves / how to test

Fixes R2-1963. A small fix to update the CreateBucket to include the storage class in the request body. Manually tested creating a bucket with a storage class.

Author has addressed the following

• Tests
  • TODO (before merge)
  • Included
  • Not necessary because:
• Changeset (Changeset guidelines)
  • TODO (before merge)
  • Included
  • Not necessary because:
• Public documentation
  • TODO (before merge)
  • Cloudflare docs PR(s): https://github.com/cloudflare/cloudflare-docs/pull/...
  • Not necessary because: same as Add Wrangler support for R2 storage classes #5429.

[changeset-bot]

🦋 Changeset detected

Latest commit: 1efde45

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
wrangler	Minor
@cloudflare/vitest-pool-workers	Patch

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[github-actions]

A wrangler prerelease is available for testing. You can install this latest build in your project with:

npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8634430926/npm-package-wrangler-5561

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npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/prs/5561/npm-package-wrangler-5561

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npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8634430926/npm-package-wrangler-5561 dev path/to/script.js

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npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8634430926/npm-package-create-cloudflare-5561 --no-auto-update

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8634430926/npm-package-cloudflare-kv-asset-handler-5561

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8634430926/npm-package-miniflare-5561

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8634430926/npm-package-cloudflare-pages-shared-5561

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8634430926/npm-package-cloudflare-vitest-pool-workers-5561

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---

wrangler@3.48.0 includes the following runtime dependencies:

Package	Constraint	Resolved
miniflare	workspace:*	3.20240404.0
workerd	1.20240404.0	1.20240404.0
workerd --version	1.20240404.0	2024-04-04

Please ensure constraints are pinned, and miniflare/workerd minor versions match.

[petebacondarwin]

Just a quick fix to the changeset