test_runner: avoid spread operator on arrays

[aduh95]

[nodejs-github-bot]

Review requested:

• [ ] @nodejs/test_runner

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 66.66667% with 2 lines in your changes missing coverage. Please review.

Project coverage is 88.24%. Comparing base (fbc6fcb) to head (979af26). Report is 358 commits behind head on main.

Files with missing lines	Patch %	Lines
lib/internal/test_runner/runner.js	33.33%	2 Missing :warning:

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #55143   +/-   ##
=======================================
  Coverage   88.23%   88.24%           
=======================================
  Files         651      651           
  Lines      183914   183901   -13     
  Branches    35865    35862    -3     
=======================================
+ Hits       162279   162282    +3     
+ Misses      14910    14904    -6     
+ Partials     6725     6715   -10     

Files with missing lines	Coverage Δ
lib/internal/test_runner/test.js	96.94% <100.00%> (+<0.01%)	:arrow_up:
lib/internal/test_runner/runner.js	86.75% <33.33%> (-0.10%)	:arrow_down:

... and 20 files with indirect coverage changes

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/62819/

[nodejs-github-bot]

Landed in 103b8439cae2a113f4f0796dd6fcbced294a3ed8