docs: linting fix

Author: mattsb42-aws

examples/src/keyring/aws_kms/act_like_aws_kms_master_key_provider.py

@@ -50,7 +50,7 @@ def run(aws_kms_cmk, source_plaintext):
     # On encrypt, this master key provider only uses the single target AWS KMS CMK.
     # However, on decrypt, this master key provider attempts to decrypt
     # any data keys that were encrypted under an AWS KMS CMK.
-    _master_key_provider_to_replicate = KMSMasterKeyProvider(key_ids=[aws_kms_cmk])
+    _master_key_provider_to_replicate = KMSMasterKeyProvider(key_ids=[aws_kms_cmk])  # noqa: intentionally never used
 
     # Create a keyring that encrypts and decrypts using a single AWS KMS CMK.
     single_cmk_keyring = AwsKmsKeyring(generator_key_id=aws_kms_cmk)