Change AG0019 to allow for unit test projects

[dicko2]

AgodaAnalyzers/src/Agoda.Analyzers/AgodaCustom/AG0019PreventUseOfInternalsVisibleToAttribute.cs

Line 41 in 67253b5

var attributeNode = (AttributeListSyntax)context.Node;

If the target project has "test" in the name then not fail.

We think this is acceptable for some test projects in some scenarios

https://dotnetthoughts.net/dotnet-minimal-api-integration-testing/

Example here, its mandatory to use with minimal API + webapplicationfactory from MVC testing library