test_runner: replace ansi clear with ansi reset

[pmarchini]

Fixes: #55009

[nodejs-github-bot]

Review requested:

• @nodejs/test_runner

[cjihrig]

Not for this PR, but is colors.clear worth having at all? I'm not sure if it's used elsewhere, and it seems like a possible footgun, as evidenced by this bug.

[pmarchini]

I'm going to check if it's used elsewhere, but yes, it's definitely risky

[RedYetiDev]

Great work @pmarchini! LGTM

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/62563/

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.04%. Comparing base (0d4387e) to head (9428d7c).
Report is 25 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #55013   +/-   ##
=======================================
  Coverage   88.04%   88.04%           
=======================================
  Files         652      652           
  Lines      183765   183766    +1     
  Branches    35863    35862    -1     
=======================================
+ Hits       161789   161800   +11     
- Misses      15229    15231    +2     
+ Partials     6747     6735   -12     

Files with missing lines	Coverage Δ
lib/internal/test_runner/reporter/dot.js	100.00% <100.00%> (ø)
lib/internal/util/colors.js	100.00% <100.00%> (ø)

... and 31 files with indirect coverage changes