Fix GitRepositoryTests.testRawRepository on Windows

Is it reproducible with SwiftPM command-line tools: swift build, swift test, swift package etc?

• Confirmed reproduction steps with SwiftPM CLI. The description text must include reproduction steps with either of command-line SwiftPM commands, swift build, swift test, swift package etc.

Description

The GitRepositoryTests.testRawRepository test failed on Windows as Tests/SourceControlTests/Inputs/TestRepo.tgz has unsupported characters in the archive.

Expected behavior

The test passes.

Actual behavior

The current test fails to extract the test repository

Test Suite 'Selected tests' started at 2025-03-19 11:15:25.259
Test Suite 'GitRepositoryTests' started at 2025-03-19 11:15:25.262
Test Case 'GitRepositoryTests.testRawRepository' started at 2025-03-19 11:15:25.262
<EXPR>:0: error: GitRepositoryTests.testRawRepository : threw error "terminated(1): tar.exe -x -v -C C:\Users\bkhouri\AppData\Local\Temp\spm-tests-testRawRepository.IwUiqL -f C:\Users\bkhouri\Documents\git_win\swift-package-manager\Tests\SourceControlTests\Inputs\TestRepo.tgz output:
    x TestRepo/
    x TestRepo/.git/
    x TestRepo/README.txt
    x TestRepo/construct.sh
    x TestRepo/funny-names/
    x TestRepo/subdir/
    x TestRepo/subdir/empty.txt
    x TestRepo/funny-names/a\b: Can't create '\\\\?\\C:\\Users\\bkhouri\\AppData\\Local\\Temp\\spm-tests-testRawRepository.IwUiqL\\TestRepo\\funny-names\\a\b': Invalid argument
    x TestRepo/funny-names/a    b: Can't create '\\\\?\\C:\\Users\\bkhouri\\AppData\\Local\\Temp\\spm-tests-testRawRepository.IwUiqL\\TestRepo\\funny-names\\a  b': Invalid argument
    x TestRepo/funny-names/a\nb: Can't create '\\\\?\\C:\\Users\\bkhouri\\AppData\\Local\\Temp\\spm-tests-testRawRepository.IwUiqL\\TestRepo\\funny-names\\a\nb': Invalid argument
    x TestRepo/funny-names/a\022b: Can't create '\\\\?\\C:\\Users\\bkhouri\\AppData\\Local\\Temp\\spm-tests-testRawRepository.IwUiqL\\TestRepo\\funny-names\\a\022b': Invalid argument
    x TestRepo/funny-names/a b
    x TestRepo/funny-names/a"b
    x TestRepo/funny-names/a$b
    x TestRepo/.git/COMMIT_EDITMSG
    x TestRepo/.git/HEAD
    x TestRepo/.git/branches/
    x TestRepo/.git/config
    x TestRepo/.git/description
    x TestRepo/.git/index
    x TestRepo/.git/info/
    x TestRepo/.git/logs/
    x TestRepo/.git/objects/
    x TestRepo/.git/packed-refs
    x TestRepo/.git/refs/
    x TestRepo/.git/refs/heads/
    x TestRepo/.git/refs/tags/
    x TestRepo/.git/objects/info/
    x TestRepo/.git/objects/pack/
    x TestRepo/.git/objects/pack/pack-a4fa109b46e85a9d707d3677668ae4370348f386.idx
    x TestRepo/.git/objects/pack/pack-a4fa109b46e85a9d707d3677668ae4370348f386.pack
    x TestRepo/.git/objects/info/packs
    x TestRepo/.git/logs/HEAD
    x TestRepo/.git/logs/refs/
    x TestRepo/.git/logs/refs/heads/
    x TestRepo/.git/logs/refs/heads/master
    x TestRepo/.git/info/exclude
    x TestRepo/.git/info/refs
    tar.exe: Error exit delayed from previous errors.

"
Test Case 'GitRepositoryTests.testRawRepository' failed (0.891 seconds)
Test Suite 'GitRepositoryTests' failed at 2025-03-19 11:15:26.153
         Executed 1 test, with 1 failure (1 unexpected) in 0.891 (0.891) seconds
Test Suite 'Selected tests' failed at 2025-03-19 11:15:26.153
         Executed 1 test, with 1 failure (1 unexpected) in 0.891 (0.891) seconds

Steps to reproduce

1. Ensure the GitRepositoryTests.testRawRepository is not skipped on Windows
2. Run swift test --filter testRawRepository

Swift Package Manager version/commit hash

No response

Swift & OS version (output of swift --version ; uname -a)

No response