address PR comments

src/cmap/connection.ts

@@ -13,8 +13,8 @@ import {
   UNPINNED
 } from '../constants';
 import {
-  MongoAPIError,
   MongoCompatibilityError,
+  MongoMissingDependencyError,
   MongoNetworkError,
   MongoNetworkTimeoutError,
   MongoParseError,
@@ -695,7 +695,11 @@ export class CryptoConnection extends Connection {
   ): Promise<Document> {
     const { autoEncrypter } = this;
     if (!autoEncrypter) {
-      throw new MongoAPIError('No AutoEncrypter available for encryption');
+      // TODO(NODE-6065): throw a MongoMissingDependencyError in Node V7
+      // @ts-expect-error No cause provided because there is no underlying error.
+      throw new MongoMissingDependencyError('No AutoEncrypter available for encryption', {
+        dependencyName: 'n/a'
+      });
     }
 
     const serverWireVersion = maxWireVersion(this);

src/encrypter.ts

@@ -130,7 +130,7 @@ export class Encrypter {
         'Auto-encryption requested, but the module is not installed. ' +
           'Please add `mongodb-client-encryption` as a dependency of your project',
         {
-          cause: mongodbClientEncryption['kModuleError'].cause,
+          cause: mongodbClientEncryption['kModuleError'],
           dependencyName: 'mongodb-client-encryption'
         }
       );

src/error.ts

@@ -1009,7 +1009,9 @@ export class MongoMissingCredentialsError extends MongoAPIError {
  */
 export class MongoMissingDependencyError extends MongoAPIError {
   dependencyName: string;
-  override cause: Error;
+
+  /** @remarks This property is assigned in the `Error` constructor. */
+  declare cause: Error;
 
   /**
    * **Do not use this constructor!**
@@ -1025,7 +1027,6 @@ export class MongoMissingDependencyError extends MongoAPIError {
   constructor(message: string, options: { cause: Error; dependencyName: string }) {
     super(message, options);
     this.dependencyName = options.dependencyName;
-    this.cause = options.cause;
   }
 
   override get name(): string {