chore(deps): bump System.Text.Json from 9.0.3 to 9.0.4

Bumps [System.Text.Json](https://github.com/dotnet/runtime) from 9.0.3 to 9.0.4.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v9.0.3...v9.0.4)

---
updated-dependencies:
- dependency-name: System.Text.Json
  dependency-version: 9.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj

@@ -14,7 +14,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageReference Include="Moq" Version="4.20.72" />
     <PackageReference Include="SharpYaml" Version="2.1.1" />
-    <PackageReference Include="System.Text.Json" Version="9.0.3" />
+    <PackageReference Include="System.Text.Json" Version="9.0.4" />
     <PackageReference Include="Verify.Xunit" Version="29.2.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.0.2" PrivateAssets="all" />