chore(deps): update terraform zitadel to v2.0.3 (#153)

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 | patch | `2.0.2` -> `2.0.3` |

---

### Release Notes

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

###
[`v2.0.3`](https://redirect.github.com/zitadel/terraform-provider-zitadel/compare/v2.0.2...v2.0.3)

[Compare
Source](https://redirect.github.com/zitadel/terraform-provider-zitadel/compare/v2.0.2...v2.0.3)

</details>

---

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infrastructure/.terraform.lock.hcl

@@ -28,7 +28,7 @@ terraform {
   required_providers {
     zitadel = {
       source  = "zitadel/zitadel"
-      version = "2.0.2"
+      version = "2.0.3"
     }
   }
 }