deps: update terraform hcloud to v1.47.0 (#644)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [hcloud](https://registry.terraform.io/providers/hetznercloud/hcloud)
([source](https://togithub.com/hetznercloud/terraform-provider-hcloud))
| required_provider | minor | `1.45.0` -> `1.47.0` |

---

### Release Notes

<details>
<summary>hetznercloud/terraform-provider-hcloud (hcloud)</summary>

###
[`v1.47.0`](https://togithub.com/hetznercloud/terraform-provider-hcloud/blob/HEAD/CHANGELOG.md#1470-2024-05-02)

[Compare
Source](https://togithub.com/hetznercloud/terraform-provider-hcloud/compare/v1.46.1...v1.47.0)

##### Features

- test with Terraform 1.8
([#&#8203;919](https://togithub.com/hetznercloud/terraform-provider-hcloud/issues/919))
([800a66c](https://togithub.com/hetznercloud/terraform-provider-hcloud/commit/800a66c0b9e61337b86a58f3ce7ab478fad391b6))

##### Bug Fixes

- **ssh-key:** data inconsistency with empty label objects
([#&#8203;922](https://togithub.com/hetznercloud/terraform-provider-hcloud/issues/922))
([7e1bf2c](https://togithub.com/hetznercloud/terraform-provider-hcloud/commit/7e1bf2cd6c80c0a86d06b293e7d325e8986d5b3f)),
closes
[#&#8203;921](https://togithub.com/hetznercloud/terraform-provider-hcloud/issues/921)
- **subnet:** handle new error message for deleting subnets with
attached resources
([#&#8203;923](https://togithub.com/hetznercloud/terraform-provider-hcloud/issues/923))
([932c47b](https://togithub.com/hetznercloud/terraform-provider-hcloud/commit/932c47b8c626898fae47f07b4c161d0206561fb1))

###
[`v1.46.1`](https://togithub.com/hetznercloud/terraform-provider-hcloud/blob/HEAD/CHANGELOG.md#1461-2024-04-05)

[Compare
Source](https://togithub.com/hetznercloud/terraform-provider-hcloud/compare/v1.45.0...v1.46.1)

##### Bug Fixes

- **server:** cannot update placement group
([#&#8203;902](https://togithub.com/hetznercloud/terraform-provider-hcloud/issues/902))
([fa5f98c](https://togithub.com/hetznercloud/terraform-provider-hcloud/commit/fa5f98cf4e0c62249b14694ad2db59a5baf8fe30))

</details>

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dev/hcloud-k8s-env/providers.tf

@@ -23,7 +23,7 @@ terraform {
 
     hcloud = {
       source  = "hetznercloud/hcloud"
-      version = "1.45.0"
+      version = "1.47.0"
     }
   }
 }