chore(deps): update dependency hashicorp/terraform to v1.6.4

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
hashicorp/terraform	patch	1.6.3 -> 1.6.4

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Release Notes

hashicorp/terraform (hashicorp/terraform)

### [`v1.6.4`](https://togithub.com/hashicorp/terraform/releases/tag/v1.6.4) [Compare Source](https://togithub.com/hashicorp/terraform/compare/v1.6.3...v1.6.4) #### 1.6.4 (November 15, 2023) ENHANCEMENTS: - backend/s3: Add the parameter `endpoints.sso` to allow overriding the AWS SSO API endpoint. ([#​34195](https://togithub.com/hashicorp/terraform/pull/34195)) BUG FIXES: - `terraform test`: Fix bug preventing passing sensitive output values from previous run blocks as inputs to future run blocks. ([#​34190](https://togithub.com/hashicorp/terraform/pull/34190)) - backend/s3: Add `https_proxy` and `no_proxy` parameters to allow fully specifying proxy configuration ([#​34243](https://togithub.com/hashicorp/terraform/pull/34243))

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