chore: bump @opennextjs/cloudflare to 1.6.4

[dario-piotrowicz]

Description

Bumping the @opennextjs/cloudflare dependency to 1.6.4, this version of the open-next adapter also supports Next.js 15.4, so I'm also removing the 15.3.2 downgrade in the CI check (introduced in #8039) 🙂

Validation

Tested this locally, also the CI check will show if this is working in CI 🙂

Check List

• I have read the Contributing Guidelines and made commit messages that follow the guideline.
• I have run pnpm format to ensure the code follows the style guide.
• I have run pnpm test to check if all tests are passing.
• I have run pnpm build to check if the website builds without errors.
• I've covered new added functionality with unit tests if necessary.

[vercel]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.81%. Comparing base (35f0004) to head (01ed1a2).
⚠️ Report is 1 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8065      +/-   ##
==========================================
+ Coverage   72.77%   72.81%   +0.03%     
==========================================
  Files          96       96              
  Lines        8328     8328              
  Branches      215      214       -1     
==========================================
+ Hits         6061     6064       +3     
+ Misses       2266     2263       -3     
  Partials        1        1              

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[Copilot]

Pull Request Overview

This PR updates the @opennextjs/cloudflare dependency from version 1.6.2 to 1.6.4 to gain support for Next.js 15.4, and removes the temporary Next.js version downgrade from the CI workflow that was previously required due to compatibility issues.

• Bumps @opennextjs/cloudflare dependency to version 1.6.4
• Removes the temporary Next.js 15.3.2 downgrade step from the Playwright CI workflow

Reviewed Changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated no comments.

File	Description
apps/site/package.json	Updates @opennextjs/cloudflare dependency version from ^1.6.2 to ^1.6.4
.github/workflows/playwright-cloudflare-open-next.yml	Removes the temporary Next.js downgrade step that forced installation of version 15.3.2

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

[ovflowd]

Yay!

[MattIPv4]

Was there an update on peerDeps in @opennextjs/cloudflare to block non-compatible next versions? Though admittedly with this bump and the CI using the installed versions, a bump will get blocked by a failing CI where needed.

[dario-piotrowicz]

Was there an update on peerDeps in @opennextjs/cloudflare to block non-compatible next versions? Though admittedly with this bump and the CI using the installed versions, a bump will get blocked by a failing CI where needed.

No sorry, no updates, I actually forgot to ask the team about that 🙇 , I'll ask right away 🙏

[AugustinMauroy]

LGMT !

[github-actions]

Lighthouse Results

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/en/download	🟠 89	🟢 100	🟢 100	🟢 100	🔗
/en/blog	🟢 100	🟢 100	🟢 96	🟢 100	🔗