fix(ci): replace make with ninja.

[SYaoJun]

Reason for this PR

fix: #884

What changes are included in this PR?

Are these changes tested?

Are there any user-facing changes?

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.86%. Comparing base (0042a6c) to head (d1c1e5a).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #885      +/-   ##
============================================
+ Coverage     79.84%   79.86%   +0.02%     
  Complexity      615      615              
============================================
  Files            93       93              
  Lines         10310    10296      -14     
  Branches       1055     1055              
============================================
- Hits           8232     8223       -9     
+ Misses         1838     1833       -5     
  Partials        240      240              

Flag	Coverage Δ
cpp	70.89% <ø> (+0.01%)	⬆️

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[SYaoJun]

ninja almost faster than make approximately 10%~30%.

[SYaoJun]

MacOS cost 7m 58s.

[Copilot]

Pull request overview

Updates the C++ CI workflows to use the Ninja generator instead of GNU Make, addressing macOS failures caused by the Linux-only nproc usage in parallel Make builds (issue #884).

Changes:

• Install Ninja on Ubuntu CI runners (ninja-build) and macOS via Homebrew (ninja).
• Switch CMake configuration in CI to -G Ninja and replace make invocations with ninja.
• Update lint/docs build steps in CI to run their targets via Ninja.

Reviewed changes

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

File	Description
cpp/Brewfile	Adds ninja so macOS CI (via brew bundle) has the required build tool.
.github/workflows/ci.yml	Installs Ninja on Ubuntu and switches configure/build/lint/docs steps from Make to Ninja across Ubuntu + macOS jobs.
.github/workflows/ci-nightly.yml	Installs Ninja and switches nightly configure/build steps from Make to Ninja.

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[SYaoJun]

It appears Copilot does not provide any additional suggestions. @yangxk1

[yangxk1]

Using ninja looks good! but I think we should also keep a make case to ensure that make works fine

[yangxk1]

LGTM