Bump MongoDB.Driver from 2.14.0 to 2.14.1 (#234)

Bumps MongoDB.Driver from 2.14.0 to 2.14.1.

---
updated-dependencies:
- dependency-name: MongoDB.Driver
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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src/Akka.Persistence.MongoDb/Akka.Persistence.MongoDb.csproj

@@ -11,6 +11,6 @@
   <ItemGroup>
     <PackageReference Include="Akka.Persistence.Query" Version="$(AkkaVersion)" />
     <PackageReference Include="akka.streams" Version="$(AkkaVersion)" />
-    <PackageReference Include="MongoDB.Driver" Version="2.14.0" />
+    <PackageReference Include="MongoDB.Driver" Version="2.14.1" />
   </ItemGroup>
 </Project>