deps: Bump System.Text.Json from 10.0.5 to 10.0.9 (#1289)

---
updated-dependencies:
- dependency-name: System.Text.Json
  dependency-version: 10.0.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -28,7 +28,7 @@
   </ItemGroup>
 
   <ItemGroup Label="Serialization and Security">
-    <PackageVersion Include="System.Text.Json" Version="10.0.5" />
+    <PackageVersion Include="System.Text.Json" Version="10.0.9" />
     <PackageVersion Include="System.Security.Cryptography.Pkcs" Version="10.0.5" />
     <!-- Pinned explicitly to patched 8.0.3 to avoid transitive 8.0.2 pulled by Microsoft.IdentityModel.*
          which carries GHSA-37gx-xxp4-5rgx and GHSA-w3x6-4m5h-cxqf (both High). -->