chore: add upload duration and sourcemap size to metrics

[zebp]

What this PR solves / how to test

Adds durationMs and sourceMapSize properties to the deploy worker script metrics event as well as sending the event after the deploy request. This PR can be tested by deploying a Worker using wrangler built from this PR and checking internal tools.

Fixes WP-996

Author has addressed the following

• Tests
  • TODO (before merge)
  • Included
  • Not necessary because: Other metrics aren't tested in code and can instead be spot checked with internal tools
• E2E Tests CI Job required? (Use "e2e" label or ask maintainer to run separately)
  • I don't know
  • Required / Maybe required
  • Not required because:
• Changeset (Changeset guidelines)
  • TODO (before merge)
  • Included
  • Not necessary because:
• Public documentation
  • TODO (before merge)
  • Cloudflare docs PR(s):
  • Not necessary because: (as far as I can tell) Wrangler metrics aren't publicly documented

[changeset-bot]

🦋 Changeset detected

Latest commit: 01553f5

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/9811042123/npm-package-wrangler-6194

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

npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/prs/6194/npm-package-wrangler-6194

Or you can use npx with this latest build directly:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/9811042123/npm-package-wrangler-6194 dev path/to/script.js

Additional artifacts:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/9811042123/npm-package-create-cloudflare-6194 --no-auto-update

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/9811042123/npm-package-cloudflare-kv-asset-handler-6194

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/9811042123/npm-package-miniflare-6194

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/9811042123/npm-package-cloudflare-pages-shared-6194

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/9811042123/npm-package-cloudflare-vitest-pool-workers-6194

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

---

[email protected] includes the following runtime dependencies:

Package	Constraint	Resolved
miniflare	workspace:*	3.20240701.0
workerd	1.20240701.0	1.20240701.0
workerd --version	1.20240701.0	2024-07-01

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

[penalosa]

This should follow the changeset format: https://github.com/cloudflare/workers-sdk/blob/main/CONTRIBUTING.md#changesets