build(deps): Bump System.Text.Json from 7.0.3 to 8.0.0 (#1270)

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>

Author: dependabot[bot]

tests/bunit.testassets/bunit.testassets.csproj

@@ -24,7 +24,7 @@
 		<PackageReference Include="Microsoft.Extensions.Localization.Abstractions" Version="$(DotNet3Version)" />
 		<PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="3.2.1" />
 		<PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.Authentication" Version="3.2.1" />
-		<PackageReference Include="System.Text.Json" Version="7.0.3" />
+		<PackageReference Include="System.Text.Json" Version="8.0.0" />
 		<PackageReference Include="Serilog.Extensions.Logging" Version="3.1.0" />
 	</ItemGroup>
 	<ItemGroup Condition="'$(TargetFramework)' == 'net5.0'">