Bump System.Text.Json from 10.0.2 to 10.0.3

---
updated-dependencies:
- dependency-name: System.Text.Json
  dependency-version: 10.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

JsonFeedNet/JsonFeedNet.csproj

@@ -29,7 +29,7 @@
   </PropertyGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' OR '$(TargetFramework)' == 'net6.0' ">
-    <PackageReference Include="System.Text.Json" Version="10.0.2" />
+    <PackageReference Include="System.Text.Json" Version="10.0.3" />
   </ItemGroup>
 
   <ItemGroup>