fix: tests/TBC.OpenAPI.SDK.Core.Tests/TBC.OpenAPI.SDK.Core.Tests.csproj to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-DOTNET-SYSTEMNETHTTP-60045
- https://snyk.io/vuln/SNYK-DOTNET-SYSTEMNETHTTP-60046
- https://snyk.io/vuln/SNYK-DOTNET-SYSTEMNETHTTP-72439
- https://snyk.io/vuln/SNYK-DOTNET-SYSTEMTEXTREGULAREXPRESSIONS-174708
- https://snyk.io/vuln/SNYK-DOTNET-SYSTEMNETHTTP-60047
- https://snyk.io/vuln/SNYK-DOTNET-SYSTEMNETHTTP-60048

Author: snyk-bot

tests/TBC.OpenAPI.SDK.Core.Tests/TBC.OpenAPI.SDK.Core.Tests.csproj

@@ -14,7 +14,7 @@
     </PackageReference>
     <PackageReference Include="FluentAssertions" Version="6.6.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.1.0" />
-    <PackageReference Include="Moq" Version="4.17.2" />
+    <PackageReference Include="Moq" Version="4.18.0" />
     <PackageReference Include="Moq.AutoMock" Version="3.3.0" />
     <PackageReference Include="WireMock.Net" Version="1.4.41" />
     <PackageReference Include="xunit" Version="2.4.1" />