Updated some test dependencies

Author: gigi81

.devcontainer/devcontainer.json

@@ -1,6 +1,6 @@
 {
     "name": "C# (.NET Core)",
-    "image": "mcr.microsoft.com/vscode/devcontainers/dotnet:5.0",
+    "image": "mcr.microsoft.com/vscode/devcontainers/dotnet:9.0",
     "settings": {
         "terminal.integrated.shell.linux": "/bin/bash"
     },

tests/System.IO.Abstractions.Extensions.Tests/System.IO.Abstractions.Extensions.Tests.csproj

@@ -14,7 +14,10 @@
 	<ItemGroup>
 		<PackageReference Include="TestableIO.System.IO.Abstractions.Wrappers" Version="22.0.10" />
 		<PackageReference Include="NUnit" Version="4.3.2" />
-		<PackageReference Include="NUnit.Analyzers" Version="4.3.0" />
+		<PackageReference Include="NUnit.Analyzers" Version="4.6.0">
+		  <PrivateAssets>all</PrivateAssets>
+		  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+		</PackageReference>
 		<PackageReference Include="NUnit3TestAdapter" Version="5.0.0" />
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
 		<PackageReference Include="coverlet.collector" Version="6.0.4" />