fix: 다크 모드에서 TestCaseStat 배경색 대비 개선 #336

Job	Run time
.NET Test - linux-x64	1m 9s
.NET Test - win-x64	3m 26s
.NET Test - osx-x64	2m 5s
.NET Test - osx-arm64	1m 22s
Test (3.11, windows-latest)	11m 38s
.NET Test - win-x86	5m 21s
Test (3.13, windows-latest)	12m 26s
Test (3.12, windows-latest)	13m 1s
Test (3.11, ubuntu-latest)	6m 18s
Test (3.14, macos-latest)	9m 33s
Test (3.12, macos-latest)	10m 2s
Test (3.13, macos-latest)	11m 2s
Test (3.14, ubuntu-latest)	6m 42s
Test (3.11, macos-latest)	11m 58s
Test (3.12, ubuntu-latest)	6m 24s
Test (3.13, ubuntu-latest)	6m 19s
Test (3.14, windows-latest)	13m 11s
changepacks	5s
Deploy Landing	0s
Node Build - ${{ matrix.settings.target }}	-1s
Upload Assets for ${{ matrix.platform }}	-1s
Winget Publish	-1s
Cargo Publish	-1s
.NET Publish	0s
Node Publish	0s
python-build	-1s
.NET Build - ${{ matrix.rid }}	-1s
Python Publish	0s
	2h 11m 56s

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