Serialise ConsoleUtilitySpecs with the process-global-state collection

Fixes a race with PromptConfirmationGlyphSpecs: both mutate the shared
static ConsoleUtility.ConsoleWrapper/IsInterrupted, but only the glyph
specs opted into ProcessGlobalStateCollection. xUnit runs different
collections in parallel, so the two classes intermittently stomped on
each other's console wrapper, surfacing as a FakeConsole.LastLine
'Sequence contains no matching element' failure in CI.

Author: dennisdoomen

tests/Fallout.Build.Specs/Utilities/ConsoleUtilitySpecs.cs

@@ -1,3 +1,4 @@
+using Fallout.Common.Specs;
 using Fallout.Common.Utilities;
 using Xunit;
 using System;
@@ -8,6 +9,7 @@
 
 namespace Fallout.Build.Tests.Utilities;
 
+[Collection(ProcessGlobalStateCollection.Name)]
 public class ConsoleUtilitySpecs
 {
     private class MockConsole : IConsole