types: address a couple of issues from #14228 code review

Author: vkarpov15

types/models.d.ts

@@ -222,7 +222,7 @@ declare module 'mongoose' {
     /** Creates a `countDocuments` query: counts the number of documents that match `filter`. */
     countDocuments(
       filter?: FilterQuery<TRawDocType>,
-      options?: (mongodb.CountOptions & MongooseSpecificQueryOptions) | null
+      options?: (mongodb.CountOptions & Omit<MongooseSpecificQueryOptions, 'lean' | 'timestamps'>) | null
     ): QueryWithHelpers<
       number,
       THydratedDocumentType,

types/query.d.ts

@@ -110,6 +110,8 @@ declare module 'mongoose' {
      * aren't explicitly allowed using `mongoose.trusted()`.
      */
     sanitizeFilter?: boolean;
+    /* Set to `true` to automatically sanitize potentially unsafe user-generated query projections */
+    sanitizeProjection?: boolean;
     setDefaultsOnInsert?: boolean;
     /** overwrites the schema's strict mode option */
     strict?: boolean | string;