Bump MongoDB.Driver from 2.12.3 to 2.12.4

Bumps MongoDB.Driver from 2.12.3 to 2.12.4.

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

src/MongoFramework/MongoFramework.csproj

@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="MongoDB.Driver" Version="2.12.3" />
+    <PackageReference Include="MongoDB.Driver" Version="2.12.4" />
   </ItemGroup>
 
   <Choose>