fix: src/LittleBlocks.Exports.IntegrationTests/LittleBlocks.Exports.I…

…ntegrationTests.csproj to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-DOTNET-SYSTEMTEXTJSON-8168848

src/LittleBlocks.Exports.IntegrationTests/LittleBlocks.Exports.IntegrationTests.csproj

@@ -12,7 +12,7 @@
         <PackageReference Include="Autofac" Version="6.2.0" />
         <PackageReference Include="Autofac.Extensions.DependencyInjection" Version="7.1.0" />
         <PackageReference Include="LittleBlocks.Testing" Version="1.0.2" />
-        <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="6.0.0" />
+        <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="7.0.0" />
         <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="6.0.1" />
         <PackageReference Include="Microsoft.Extensions.Logging" Version="6.0.0" />
         <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="6.0.3" />