Bump Moq from 4.20.69 to 4.20.70 in /src/STIL.ServiceClient.Tests

Bumps [Moq](https://github.com/moq/moq) from 4.20.69 to 4.20.70.
- [Release notes](https://github.com/moq/moq/releases)
- [Changelog](https://github.com/devlooped/moq/blob/main/CHANGELOG.md)
- [Commits](moq/moq.spikes@v4.20.69...v4.20.70)

---
updated-dependencies:
- dependency-name: Moq
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/STIL.ServiceClient.Tests/STIL.ServiceClient.Tests.csproj

@@ -36,7 +36,7 @@
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="7.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
 
-    <PackageReference Include="Moq" Version="4.20.69" />
+    <PackageReference Include="Moq" Version="4.20.70" />
     <PackageReference Include="System.ServiceModel.Primitives" Version="4.10.2" />
     <PackageReference Include="xunit" Version="2.6.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.4">