Hide aws_kms_ciphertext plaintext attribute

[julienduchesne]

Changes proposed in this pull request:
We wish to hide these logs:

<= read (data resources)

Terraform will perform the following actions:

 <= data.aws_kms_ciphertext.something
      id:                                  <computed>
      ciphertext_blob:                     <computed>
      key_id:                              "something"
      plaintext:                           "my password"

[bflad]

Thanks so much @julienduchesne 🚀 Sorry for the delay here.

--- PASS: TestAccDataSourceAwsKmsCiphertext_basic (41.18s)
--- PASS: TestAccDataSourceAwsKmsCiphertext_validate_withContext (41.31s)
--- PASS: TestAccDataSourceAwsKmsCiphertext_validate (41.47s)

[bflad]

This has been released in version 2.4.0 of the Terraform AWS provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. Thanks!