Bump Fixie.TestAdapter, Fixie and Microsoft.NET.Test.Sdk

Bumps Fixie.TestAdapter, [Fixie](https://github.com/fixie/fixie) and Microsoft.NET.Test.Sdk. These dependencies needed to be updated together.

Updates `Fixie.TestAdapter` from 3.3.0 to 3.4.0

Updates `Fixie` from 3.3.0 to 3.4.0
- [Release notes](https://github.com/fixie/fixie/releases)
- [Changelog](https://github.com/fixie/fixie/blob/main/release.ps1)
- [Commits](fixie/fixie@3.3.0...3.4.0)

Updates `Microsoft.NET.Test.Sdk` from 17.4.0 to 17.8.0

---
updated-dependencies:
- dependency-name: Fixie.TestAdapter
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: Fixie
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: Microsoft.NET.Test.Sdk
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

libs/pulumi/tests/Pulumi.Aws.IntegrationTests/Pulumi.Aws.IntegrationTests.csproj

@@ -11,8 +11,8 @@
   <ItemGroup>
     <PackageReference Include="AWSSDK.EC2" Version="3.7.*" />
     <PackageReference Include="AWSSDK.SecurityToken" Version="3.7.*" />
-    <PackageReference Include="Fixie" Version="3.3.0" />
-    <PackageReference Include="Fixie.TestAdapter" Version="3.3.0" />
+    <PackageReference Include="Fixie" Version="3.4.0" />
+    <PackageReference Include="Fixie.TestAdapter" Version="3.4.0" />
   </ItemGroup>
 
   <ItemGroup>