Bump Testcontainers from 3.4.0 to 3.5.0 (#319)

Bumps [Testcontainers](https://github.com/testcontainers/testcontainers-dotnet) from 3.4.0 to 3.5.0.
- [Release notes](https://github.com/testcontainers/testcontainers-dotnet/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-dotnet/blob/develop/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-dotnet@3.4.0...3.5.0)

---
updated-dependencies:
- dependency-name: Testcontainers
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

test/Splunk.OpenTelemetry.AutoInstrumentation.IntegrationTests/Splunk.OpenTelemetry.AutoInstrumentation.IntegrationTests.csproj

@@ -17,7 +17,7 @@
     <PackageReference Include="System.Diagnostics.DiagnosticSource" Version="7.0.2" />
     <PackageReference Include="System.Runtime.InteropServices" Version="4.3.0" />
     <PackageReference Include="System.Runtime.InteropServices.RuntimeInformation" Version="4.3.0" />
-    <PackageReference Include="Testcontainers" Version="3.4.0" />
+    <PackageReference Include="Testcontainers" Version="3.5.0" />
     <PackageReference Include="Verify.Xunit" Version="20.8.2" />
     <PackageReference Include="xunit.abstractions" Version="2.0.3" />
   </ItemGroup>