Update Cosmos SDK to oldest recommended

Author: bartelink

src/Equinox.CosmosStore/Equinox.CosmosStore.fsproj

@@ -23,7 +23,7 @@
     <PackageReference Include="FSharp.Core" Version="6.0.7" ExcludeAssets="contentfiles" />
 
     <PackageReference Include="FSharp.Control.TaskSeq" Version="0.4.0-alpha.1" />
-    <PackageReference Include="Microsoft.Azure.Cosmos" Version="3.30.1" ExcludeAssets="contentfiles" />
+    <PackageReference Include="Microsoft.Azure.Cosmos" Version="3.35.4" />
     <PackageReference Include="System.Text.Json" Version="6.0.1" />
   </ItemGroup>