chore: move two suppressions to .editorconfig instead of code

Author: Per Kops

test/.editorconfig

@@ -54,4 +54,5 @@ dotnet_diagnostic.SA1133.severity = none            # https://github.com/atc-net
 # Custom - Code Analyzers Rules
 ##########################################
 
-dotnet_diagnostic.CA1062.severity = none            # Validate arguments of public methods
+dotnet_diagnostic.CA1062.severity = none            # Validate arguments of public methods
+dotnet_diagnostic.CA2201.severity = none            # Do not raise reserved exception types

test/Atc.Hosting.Tests/BackgroundServiceBaseTests.cs

@@ -88,7 +88,6 @@ public async Task StopAsync_Stops_BackgroundService()
     }
 
     [Fact]
-    [SuppressMessage("Usage", "CA2201:Do not raise reserved exception types", Justification = "OK - for testing.")]
     public async Task Logging_Start_Retry_Cancel_Stop()
     {
         // Arrange
@@ -194,7 +193,6 @@ public async Task Logging_Start_Exception_Stop()
     }
 
     [Fact]
-    [SuppressMessage("Usage", "CA2201:Do not raise reserved exception types", Justification = "OK - for testing.")]
     public async Task HealthService_Start_Retry_Cancel_Stop()
     {
         // Arrange

test/Atc.Hosting.Tests/GlobalUsings.cs

@@ -1,5 +1,4 @@
 global using System.Collections.Concurrent;
-global using System.Diagnostics.CodeAnalysis;
 global using System.Reflection;
 
 global using Atc.Hosting.Tests.XUnitTestTypes;