[deps]: Update MongoDB.Driver to v3

Author: renovate[bot]

src/KeyConnector/KeyConnector.csproj

@@ -23,7 +23,7 @@
     <PackageReference Include="Microsoft.EntityFrameworkCore.Relational" Version="8.0.2"/>
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.2"/>
     <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.2"/>
-    <PackageReference Include="MongoDB.Driver" Version="2.22.0"/>
+    <PackageReference Include="MongoDB.Driver" Version="3.5.0"/>
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.2"/>
     <PackageReference Include="Pkcs11Interop" Version="5.1.2"/>
     <PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Version="8.0.1"/>