fix(deps): bump Microsoft.NET.Test.Sdk from 17.5.0 to 17.9.0

Bumps [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 17.5.0 to 17.9.0.
- [Release notes](https://github.com/microsoft/vstest/releases)
- [Changelog](https://github.com/microsoft/vstest/blob/main/docs/releases.md)
- [Commits](microsoft/vstest@v17.5.0...v17.9.0)

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

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

Doppler.ContactPolicies.Api.Test/Doppler.ContactPolicies.Api.Test.csproj

@@ -9,7 +9,7 @@
   <ItemGroup>
     <PackageReference Include="AutoFixture" Version="4.18.0" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="7.0.5" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="Moq" Version="4.18.4" />
     <PackageReference Include="xunit" Version="2.4.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">

Doppler.ContactPolicies.Business.Logic.Test/Doppler.ContactPolicies.Business.Logic.Test.csproj

@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="AutoFixture" Version="4.18.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="Moq" Version="4.18.4" />
     <PackageReference Include="xunit" Version="2.4.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">

Doppler.ContactPolicies.Data.Access.Test/Doppler.ContactPolicies.Data.Access.Test.csproj

@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="xunit" Version="2.4.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>