Update CHANGELOG.md for #36383

Author: changelogbot

CHANGELOG.md

@@ -25,6 +25,7 @@ ENHANCEMENTS:
 
 BUG FIXES:
 
+* data-source/aws_iam_policy_document: Fix `Failed to marshal state to json: unsupported attribute "override_json"` and `Failed to marshal state to json: unsupported attribute "source_json"` errors when running `terraform show -json` or `terraform state rm` ([#36383](https://github.com/hashicorp/terraform-provider-aws/issues/36383))
 * data-source/aws_opensearch_domain : Add `auto_tune_options.use_off_peak_window` attribute. This fixes a regression introduced in [v5.40.0](https://github.com/hashicorp/terraform-provider-aws/blob/main/CHANGELOG.md#5400-march--7-2024) causing `Invalid address to set` errors ([#36298](https://github.com/hashicorp/terraform-provider-aws/issues/36298))
 * resource/aws_cognito_identity_pool: Fix handling of resources deleted out of band ([#36100](https://github.com/hashicorp/terraform-provider-aws/issues/36100))
 * resource/aws_cognito_identity_provider: Fix `InvalidParameterException: ActiveEncryptionCertificate is not a valid key for SAML identity provider details` errors on resource Update ([#36311](https://github.com/hashicorp/terraform-provider-aws/issues/36311))