CSHARP-2128: Resync CRUD tests to update insertMany test format to a map

Author: ksadoff

tests/MongoDB.Driver.Tests/Specifications/crud/tests/write/insertMany.json

@@ -25,10 +25,10 @@
       },
       "outcome": {
         "result": {
-          "insertedIds": [
-            2,
-            3
-          ]
+          "insertedIds": {
+            "0": 2,
+            "1": 3
+          }
         },
         "collection": {
           "data": [

tests/MongoDB.Driver.Tests/Specifications/crud/tests/write/insertMany.yml

@@ -7,15 +7,13 @@ tests:
         operation:
             name: "insertMany"
             arguments:
-                documents: 
+                documents:
                     - {_id: 2, x: 22}
                     - {_id: 3, x: 33}
 
         outcome:
             result:
-                insertedIds: 
-                    - 2
-                    - 3
+                insertedIds: {0: 2, 1: 3}
             collection:
                 data:
                     - {_id: 1, x: 11}