test_runner: match minimum file column to 'all files'

[islandryu]

Fixed a problem that all files are omitted when the file name displayed in coverage is too short.

ℹ tests 1
ℹ suites 0
ℹ pass 1
ℹ fail 0
ℹ cancelled 0
ℹ skipped 0
ℹ todo 0
ℹ duration_ms 3.993167
ℹ start of coverage report
ℹ ------------------------------------------------------------------------------------
ℹ file | line % | branch % | funcs % | uncovered lines
ℹ ------------------------------------------------------------------------------------
ℹ a.js | 55.77 | 100.00 | 0.00 | 5-7 9-11 13-15 17-19 29-30 40-42 45-47 50-52
ℹ ------------------------------------------------------------------------------------
ℹ …files | 55.77 | 100.00 | 0.00 | ℹ ------------------------------------------------------------------------------------
ℹ end of coverage report

[nodejs-github-bot]

Review requested:

• @nodejs/test_runner

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 90.24%. Comparing base (86f86a2) to head (697228d).
Report is 18 commits behind head on main.

Files with missing lines	Patch %	Lines
lib/internal/test_runner/utils.js	0.00%	1 Missing ⚠️

Additional details and impacted files

@@ Coverage Diff @@## main #57848 +/- ##
==========================================
+ Coverage 90.22% 90.24% +0.01% 
==========================================
Files 630 630 Lines 185481 185481 Branches 36364 36369 +5 ==========================================
+ Hits 167357 167386 +29 + Misses 11004 11000 -4 + Partials 7120 7095 -25 

Files with missing lines	Coverage Δ
lib/internal/test_runner/utils.js	58.52% <0.00%> (ø)

... and 24 files with indirect coverage changes

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[pmarchini]

Thanks for the contribution!!!
LGTM!

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/66238/

[nodejs-github-bot]

Landed in f89baf2