chore: update flake.lock to include bun 1.3.8+

[MBanucu]

Updates nixpkgs in flake.lock to a rev that includes bun 1.3.8+, fixing the build failure caused by the script requiring bun@^1.3.8 while the lock had bun 1.3.6.

The issue was introduced when the packageManager was updated to bun@1.3.8, but the flake.lock remained pinned to an older nixpkgs rev.

Fixes#12602

[github-actions]

Hey! Your PR title Fix flake.lock to resolve bun version issue doesn't follow conventional commit format.

Please update it to start with one of:

• feat: or feat(scope): new feature
• fix: or fix(scope): bug fix
• docs: or docs(scope): documentation changes
• chore: or chore(scope): maintenance tasks
• refactor: or refactor(scope): code refactoring
• test: or test(scope): adding or updating tests

Where scope is the package name (e.g., app, desktop, opencode).

See CONTRIBUTING.md for details.

[github-actions]

The following comment was made by an LLM, it may be inaccurate:

No duplicate PRs found

[github-actions]

Thanks for your contribution!

This PR doesn't have a linked issue. All PRs must reference an existing issue.

Please:

1. Open an issue describing the bug/feature (if one doesn't exist)
2. Add Fixes #<number> or Closes #<number> to this PR description

See CONTRIBUTING.md for details.

[MBanucu]

Tested locally: the fix-flake-lock branch builds successfully with the updated nixpkgs rev including bun 1.3.8.

[ProdigyRahul]

bruh :) just remove dependencies and reinstall using bun i :) this is not the solution

[zaninime]

#11919 landed in master already

[MBanucu]

#12603 (comment)
bruh :) just remove dependencies and reinstall using bun i :) this is not the solution

@ProdigyRahul what do you mean? bun install does not work in nix packages. The best solution that I found until now is bun2nix. The next best solution is to remove the bun install step from the flake and then bun will install the dependencies automatically in a cache folder on first use of opencode. Somehow like this. But this all does not solve the problem of the strict bun version requirement as package manager. flake.lock has to be upgraded if the bun version in package.json is upgraded. I don't know how to work around that and I think you shouldn't.

[MBanucu]

#11919 Tested, fixed, good.