use the native node:http2 when available

[vicb]

node:http2 was implemented in cloudflare/workerd#4765, released in https://github.com/cloudflare/workerd/releases/tag/v1.20250814.0

unenv has a peer dep on workerd ^1.20250828.1 which includes this change.

Notes:

• it is a deliberate choice not to fold getHttp2Overrides into getHttpOverrides in order to keep the preset code simple. The later already handle http modules and server modules and the dependency on server module to the base module
• tests are expected to fail until workerd is >= 20250901 in wrangler and vite - needed to test the default enabled date. workerd was updated to 2050902 in Bump the workerd-and-workers-types group with 2 updates #10535

/cc @anonrig @jasnell

---

• Tests
  • Tests included
  • Tests not necessary because:
• Public documentation
  • Cloudflare docs PR(s):
  • Documentation not necessary because: will be documented by the runtime team
• Wrangler V3 Backport
  • Wrangler PR:
  • Not necessary because: unenv updates are not backported

[changeset-bot]

🦋 Changeset detected

Latest commit: 4668967

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

This PR includes changesets to release 4 packages

Name	Type
@cloudflare/unenv-preset	Patch
@cloudflare/vite-plugin	Patch
wrangler	Patch
@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

[pkg-pr-new]

create-cloudflare

npm i https://pkg.pr.new/create-cloudflare@10536 

@cloudflare/kv-asset-handler

npm i https://pkg.pr.new/@cloudflare/kv-asset-handler@10536 

miniflare

npm i https://pkg.pr.new/miniflare@10536 

@cloudflare/pages-shared

npm i https://pkg.pr.new/@cloudflare/pages-shared@10536 

@cloudflare/unenv-preset

npm i https://pkg.pr.new/@cloudflare/unenv-preset@10536 

@cloudflare/vite-plugin

npm i https://pkg.pr.new/@cloudflare/vite-plugin@10536 

@cloudflare/vitest-pool-workers

npm i https://pkg.pr.new/@cloudflare/vitest-pool-workers@10536 

@cloudflare/workers-editor-shared

npm i https://pkg.pr.new/@cloudflare/workers-editor-shared@10536 

wrangler

npm i https://pkg.pr.new/wrangler@10536 

commit: 4668967

[vicb]

Thanks for the review @jamesopstad