Bump System.Net.Http.Json from 6.0.2 to 9.0.9

---
updated-dependencies:
- dependency-name: System.Net.Http.Json
  dependency-version: 9.0.9
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

src/Meilisearch/Meilisearch.csproj

@@ -23,7 +23,7 @@
     </PropertyGroup>
     <ItemGroup>
         <PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="8.7.0" />
-        <PackageReference Include="System.Net.Http.Json" Version="6.0.2" />
+        <PackageReference Include="System.Net.Http.Json" Version="9.0.9" />
     </ItemGroup>
 
     <ItemGroup>