Replace deprecated command with newer alternative

> Deprecated mongosh Method
> This method is deprecated in mongosh. For alternative methods, see
> Compatibility Changes with Legacy mongo Shell.
> https://www.mongodb.com/docs/mongodb-shell/reference/compatibility/#std-label-compatibility

See https://www.mongodb.com/docs/manual/reference/method/db.collection.insert/

Author: stevenpost

lib/puppet/provider/mongodb_database/mongodb.rb

@@ -29,7 +29,7 @@ def self.prefetch(resources)
 
   def create
     if db_ismaster
-      out = mongo_eval('db.dummyData.insert({"created_by_puppet": 1})', @resource[:name])
+      out = mongo_eval('db.dummyData.insertOne({"created_by_puppet": 1})', @resource[:name])
       raise "Failed to create DB '#{@resource[:name]}'\n#{out}" if %r{writeError} =~ out
     else
       Puppet.warning 'Database creation is available only from master host'