chore(deps): update terraform zitadel to v2 (#70)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [zitadel](https://registry.terraform.io/providers/zitadel/zitadel)
([source](https://redirect.github.com/zitadel/terraform-provider-zitadel))
| required_provider | major | `1.3.0` -> `2.0.1` |

---

### Release Notes

<details>
<summary>zitadel/terraform-provider-zitadel (zitadel)</summary>

###
[`v2.0.1`](https://redirect.github.com/zitadel/terraform-provider-zitadel/compare/v2.0.0...v2.0.1)

[Compare
Source](https://redirect.github.com/zitadel/terraform-provider-zitadel/compare/v2.0.0...v2.0.1)

###
[`v2.0.0`](https://redirect.github.com/zitadel/terraform-provider-zitadel/releases/tag/v2.0.0)

[Compare
Source](https://redirect.github.com/zitadel/terraform-provider-zitadel/compare/v1.3.0...v2.0.0)

Breaking changes in update to ZITADEL provider v2.0.0, please remove and
reimport the SMTP configuration into the Terraform state, as the logic
for the ID in this resource changed.

Please refer to the [ZITADEL Provider Documentation -
zitadel_smtp_config](https://registry.terraform.io/providers/zitadel/zitadel/latest/docs/resources/smtp_config)
for an example.

</details>

---

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---

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infrastructure/main.tf

@@ -28,7 +28,7 @@ terraform {
   required_providers {
     zitadel = {
       source  = "zitadel/zitadel"
-      version = "1.3.0"
+      version = "2.0.1"
     }
   }
 }