error fixes

Author: OsirisTerje

.github/workflows/NUnit3TestAdapter.CI.yml

@@ -5,7 +5,7 @@
  jobs:
    build:
 
-     runs-on: windows-latest
+     runs-on: ubuntu-latest
 
      steps:
        - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0

build.cake

@@ -152,9 +152,8 @@ foreach (var (framework, vstestFramework, adapterDir) in new[] {
                 // (The DLL they are compiled against depends on VS2012 at runtime.)
                 // Enable Coverlet via the runsettings
                 SettingsFile = File("Coverlet.runsettings"),
-                // Put TRX in a known place with a stable name
                 Logger = $"trx;LogFileName=VSTest-{framework}.trx",
-                ResultsDirectory = TEST_RESULTS_DIR
+                ArgumentCustomization = args => args.AppendSwitchQuoted("/ResultsDirectory", ":", TEST_RESULTS_DIR.FullPath)
             });
 
             PublishTestResults($"VSTest-{framework}.trx");