chore(deps): update test-infra KMS to v0.0.4 (#663)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[github.com/defenseunicorns/terraform-aws-uds-kms](https://togithub.com/defenseunicorns/terraform-aws-uds-kms)
| module | patch | `v0.0.3` -> `v0.0.4` |

---

### Release Notes

<details>
<summary>defenseunicorns/terraform-aws-uds-kms
(github.com/defenseunicorns/terraform-aws-uds-kms)</summary>

###
[`v0.0.4`](https://togithub.com/defenseunicorns/terraform-aws-uds-kms/releases/tag/v0.0.4)

[Compare
Source](https://togithub.com/defenseunicorns/terraform-aws-uds-kms/compare/v0.0.3...v0.0.4)

#### 0.0.4 (2024-08-09)

#### What's Changed

- Bump google.golang.org/grpc from 1.53.0 to 1.56.3 by
[@&#8203;dependabot](https://togithub.com/dependabot) in
[https://github.com/defenseunicorns/terraform-aws-uds-kms/pull/14](https://togithub.com/defenseunicorns/terraform-aws-uds-kms/pull/14)
- chore: configure renovate by
[@&#8203;ericwyles](https://togithub.com/ericwyles) in
[https://github.com/defenseunicorns/terraform-aws-uds-kms/pull/21](https://togithub.com/defenseunicorns/terraform-aws-uds-kms/pull/21)
- feat: allow for the creation of external keys by
[@&#8203;Racer159](https://togithub.com/Racer159) in
[https://github.com/defenseunicorns/terraform-aws-uds-kms/pull/20](https://togithub.com/defenseunicorns/terraform-aws-uds-kms/pull/20)

#### New Contributors

- [@&#8203;ericwyles](https://togithub.com/ericwyles) made their first
contribution in
[https://github.com/defenseunicorns/terraform-aws-uds-kms/pull/21](https://togithub.com/defenseunicorns/terraform-aws-uds-kms/pull/21)
- [@&#8203;Racer159](https://togithub.com/Racer159) made their first
contribution in
[https://github.com/defenseunicorns/terraform-aws-uds-kms/pull/20](https://togithub.com/defenseunicorns/terraform-aws-uds-kms/pull/20)

**Full Changelog**:
defenseunicorns/terraform-aws-uds-kms@v0.0.3...v0.0.4

</details>

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.github/test-infra/buckets-iac/main.tf

@@ -67,7 +67,7 @@ resource "random_id" "unique_id" {
 
 module "generate_kms" {
   for_each = local.bucket_configurations
-  source   = "github.com/defenseunicorns/terraform-aws-uds-kms?ref=v0.0.3"
+  source   = "github.com/defenseunicorns/terraform-aws-uds-kms?ref=v0.0.4"
 
   key_owners = var.key_owner_arns
   # A list of IAM ARNs for those who will have full key permissions (`kms:*`)