Bump System.Text.Json from 7.0.3 to 8.0.0 (#148)

Bumps [System.Text.Json](https://github.com/dotnet/runtime) from 7.0.3 to 8.0.0.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v7.0.3...v8.0.0)

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

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

Directory.Packages.props

@@ -41,7 +41,7 @@
     <PackageVersion Include="System.Diagnostics.TraceSource" Version="4.3.0" />
     <PackageVersion Include="System.Reflection.Metadata" Version="7.0.2" />
     <PackageVersion Include="System.Reflection" Version="4.3.0" />
-    <PackageVersion Include="System.Text.Json" Version="7.0.3" />
+    <PackageVersion Include="System.Text.Json" Version="8.0.0" />
     <PackageVersion Include="System.Text.RegularExpressions" Version="4.3.1" />
     <PackageVersion Include="System.Security.Cryptography.Xml" Version="7.0.1" />
     <PackageVersion Include="System.Buffers" Version="4.5.1" />