fix(sdam): minHeartbeatIntervalMS => minHeartbeatFrequencyMS

Author: mbroadst

lib/core/sdam/topology.js

@@ -144,7 +144,7 @@ class Topology extends EventEmitter {
       ),
       serverSelectionTimeoutMS: options.serverSelectionTimeoutMS,
       heartbeatFrequencyMS: options.heartbeatFrequencyMS,
-      minHeartbeatIntervalMS: options.minHeartbeatIntervalMS,
+      minHeartbeatFrequencyMS: options.minHeartbeatFrequencyMS,
       // allow users to override the cursor factory
       Cursor: options.cursorFactory || CoreCursor,
       // the bson parser