Bump version of Cosmos SDK from 3.45 to 3.48 to improve full text search experience

Continuation of #35909

Bumping version of Cosmos SDK improves user experience out of the box for some scenarios (namely hybrid search). Separated this from the main PR as it required separate approval.

Author: maumar

Directory.Packages.props

@@ -36,7 +36,7 @@
     <PackageVersion Include="Microsoft.DotNet.Build.Tasks.Templating" Version="$(MicrosoftDotNetBuildTasksTemplatingVersion)" />
 
     <!-- Azure SDK for .NET dependencies -->
-    <PackageVersion Include="Microsoft.Azure.Cosmos" Version="3.45.2" />
+    <PackageVersion Include="Microsoft.Azure.Cosmos" Version="3.48.0" />
 
     <!-- SQL Server dependencies -->
     <PackageVersion Include="Microsoft.Data.SqlClient" Version="5.1.6" />

src/EFCore.Cosmos/EFCore.Cosmos.csproj

@@ -50,6 +50,8 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Azure.Cosmos" />
+    <!-- Microsoft.Azure.Cosmos requires explicit reference to Newtonsoft.Json >= 10.0.2 -->
+    <PackageReference Include="Newtonsoft.Json" />	
   </ItemGroup>
 
   <ItemGroup>