chore: updates STJ dep

Author: baywet

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

@@ -19,7 +19,7 @@
         <PackageReference Include="coverlet.msbuild" Version="6.0.4" PrivateAssets="all" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
         <PackageReference Include="FluentAssertions" Version="7.2.0" />
-        <PackageReference Include="system.text.json" Version="9.0.8" />
+        <PackageReference Include="system.text.json" Version="9.0.9" />
         <PackageReference Include="xunit" Version="2.9.3" />
         <PackageReference Include="xunit.runner.visualstudio" Version="3.1.4" PrivateAssets="all" />
     </ItemGroup>

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

@@ -13,7 +13,7 @@
     <PackageReference Include="FluentAssertions" Version="7.2.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageReference Include="Moq" Version="4.20.72" />
-    <PackageReference Include="System.Text.Json" Version="9.0.8" />
+    <PackageReference Include="System.Text.Json" Version="9.0.9" />
     <PackageReference Include="Verify.Xunit" Version="30.11.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.4" PrivateAssets="all" />