[staging-next] chromium: fix building M125 with ninja 1.12

[emilylange]

Description of changes

Solves the following build error:

FAILED: obj/chrome/browser/devtools/devtools/devtools_window.o In file included from ../../chrome/browser/devtools/devtools_window.cc:32: ../../chrome/browser/file_select_helper.h:16:10: fatal error: 'components/enterprise/buildflags/buildflags.h' file not found
 16 | #include "components/enterprise/buildflags/buildflags.h"
    |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Can be removed once chromium and ungoogled-chromium are both on M126, since the patch is from M126.

https://issues.chromium.org/issues/336911498
https://chromium-review.googlesource.com/c/chromium/src/+/5487538

#316075 (comment)

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 24.11 Release Notes (or backporting 23.11 and 24.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.