Add create & delete commands for R2 event notifications

[mattdeboard]

What this PR solves / how to test

Fixes #[insert GH or internal issue number(s)].

Author has addressed the following

• Tests
  • Included
• Changeset (Changeset guidelines)
  • Included
• Public documentation
  • Not necessary because: This is for a feature pre-release for which documentation has not been created.

[changeset-bot]

🦋 Changeset detected

Latest commit: 5dd61f2

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

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[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/8365437601/npm-package-wrangler-5294

You can reference the automatically updated head of this PR with:

npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/prs/5294/npm-package-wrangler-5294

Or you can use npx with this latest build directly:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8365437601/npm-package-wrangler-5294 dev path/to/script.js

Additional artifacts:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8365437601/npm-package-create-cloudflare-5294 --no-auto-update

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8365437601/npm-package-cloudflare-kv-asset-handler-5294

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8365437601/npm-package-miniflare-5294

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8365437601/npm-package-cloudflare-pages-shared-5294

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8365437601/npm-package-cloudflare-vitest-pool-workers-5294

Note that these links will no longer work once the GitHub Actions artifact expires.

---

wrangler@3.36.0 includes the following runtime dependencies:

Package	Constraint	Resolved
miniflare	workspace:*	3.20240314.0
workerd	1.20240314.0	1.20240314.0
workerd --version	1.20240314.0	2024-03-14

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.13%. Comparing base (62f1fce) to head (5dd61f2).
Report is 22 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5294      +/-   ##
==========================================
+ Coverage   71.66%   72.13%   +0.47%     
==========================================
  Files         312      313       +1     
  Lines       16208    16290      +82     
  Branches     4144     4161      +17     
==========================================
+ Hits        11615    11751     +136     
+ Misses       4593     4539      -54     

Files	Coverage Δ
packages/wrangler/src/r2/helpers.ts	90.82% <100.00%> (+2.87%)	⬆️
packages/wrangler/src/r2/index.ts	88.20% <100.00%> (+1.73%)	⬆️

... and 20 files with indirect coverage changes

[petebacondarwin]

This looks great. One small nit in the test.