Trying to re-run test suite fails due to file named uname

[omajid]

When re-running the test suite, the presence of a log file named uname makes .NET fail when trying to run uname command to record the CPU info.

$ dotnet turkey/Turkey.dll -v dotnet-regular-tests/debugging-sos-lldb-via-core/ --timeout 300
Testing everything under /home/omajid/workdir/dotnet-regular-tests/debugging-sos-lldb-via-core/
...
Unhandled exception: System.ComponentModel.Win32Exception (13): An error occurred trying to start process '/home/omajid/workdir/uname' with working directory '/home/omajid/workdir'. Permission denied
   at System.Diagnostics.Process.ForkAndExecProcess(ProcessStartInfo startInfo, String resolvedFilename, String[] argv, String[] envp, String cwd, Boolean setCredentials, UInt32 userId, UInt32 groupId, UInt32[] groups, Int32& stdinFd, Int32& stdoutFd, Int32& stderrFd, Boolean usesTerminal, Boolean throwOnNoExec) in /_/src/runtime/src/libraries/System.Diagnostics.Process/src/System/Diagnostics/Process.Unix.cs:line 546
   at System.Diagnostics.Process.StartCore(ProcessStartInfo startInfo) in /_/src/runtime/src/libraries/System.Diagnostics.Process/src/System/Diagnostics/Process.Unix.cs:line 456
   at System.Diagnostics.Process.Start(ProcessStartInfo startInfo) in /_/src/runtime/src/libraries/System.Diagnostics.Process/src/System/Diagnostics/Process.cs:line 1352
   at Turkey.ProcessRunner.Run(String filename, String[] args) in /__w/dotnet-bunny/dotnet-bunny/Turkey/ProcessExtensions.cs:line 33
   at Turkey.TestRunner.LogEnvironment(String logDir) in /__w/dotnet-bunny/dotnet-bunny/Turkey/TestRunner.cs:line 179
   at Turkey.TestRunner.ScanAndRunAsync(List`1 outputs, String logDir, TimeSpan defaultTimeout) in /__w/dotnet-bunny/dotnet-bunny/Turkey/TestRunner.cs:line 74
   at Turkey.Program.Run(String testRoot, Boolean verbose, String logDirectory, String additionalFeed, IEnumerable`1 trait, Int32 timeout) in /__w/dotnet-bunny/dotnet-bunny/Turkey/Program.cs:line 137
   at System.CommandLine.Invocation.CommandHandler.GetExitCodeAsync(Object value, InvocationContext context)
   at System.CommandLine.Invocation.ModelBindingCommandHandler.InvokeAsync(InvocationContext context)
   at System.CommandLine.Invocation.InvocationPipeline.<>c__DisplayClass4_0.<<BuildInvocationChain>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass21_0.<<UseParseErrorReporting>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass14_0.<<UseHelp>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass25_0.<<UseVersionOption>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass23_0.<<UseTypoCorrections>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c.<<UseSuggestDirective>b__22_0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass20_0.<<UseParseDirective>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c.<<UseDebugDirective>b__8_0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c.<<RegisterWithDotnetSuggest>b__7_0>d.MoveNext()
--- End of stack trace from previous location ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass11_0.<<UseExceptionHandler>b__0>d.MoveNext()