Bump System.Text.Json from 7.0.3 to 8.0.2

Bumps [System.Text.Json](https://github.com/dotnet/runtime) from 7.0.3 to 8.0.2.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v7.0.3...v8.0.2)

---
updated-dependencies:
- dependency-name: System.Text.Json
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

TransactionHelpers/TransactionHelpers.csproj

@@ -29,7 +29,7 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
-    <PackageReference Include="System.Text.Json" Version="7.0.3" />
+    <PackageReference Include="System.Text.Json" Version="8.0.2" />
   </ItemGroup>
 
   <PropertyGroup Condition="'$(TargetFramework)' == 'net6.0' OR '$(TargetFramework)' == 'net7.0'">