chore(deps): update terraform zitadel to v1.2.0 (#55)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [zitadel](https://registry.terraform.io/providers/zitadel/zitadel)
([source](https://togithub.com/zitadel/terraform-provider-zitadel)) |
required_provider | minor | `1.1.1` -> `1.2.0` |

---

### Release Notes

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

###
[`v1.2.0`](https://togithub.com/zitadel/terraform-provider-zitadel/releases/tag/v1.2.0)

[Compare
Source](https://togithub.com/zitadel/terraform-provider-zitadel/compare/v1.1.1...v1.2.0)

#### What's Changed

- feat: support theme mode by
[@&#8203;eliobischof](https://togithub.com/eliobischof) in
[zitadel/terraform-provider-zitadel#177
- feat: support org and user metadata by
[@&#8203;eliobischof](https://togithub.com/eliobischof) in
[zitadel/terraform-provider-zitadel#175
- feat: support SAML IDPs by
[@&#8203;eliobischof](https://togithub.com/eliobischof) in
[zitadel/terraform-provider-zitadel#178
- feat: support generic OAuth IDPs by
[@&#8203;eliobischof](https://togithub.com/eliobischof) in
[zitadel/terraform-provider-zitadel#179
- fix: key path by
[@&#8203;eliobischof](https://togithub.com/eliobischof) in
[zitadel/terraform-provider-zitadel#166
- docs: fix import commands by
[@&#8203;eliobischof](https://togithub.com/eliobischof) in
[zitadel/terraform-provider-zitadel#176
- docs: fix markdown for import code snippets by
[@&#8203;eliobischof](https://togithub.com/eliobischof) in
[zitadel/terraform-provider-zitadel#165
- chore: update github action with correct dependabot actor by
[@&#8203;hifabienne](https://togithub.com/hifabienne) in
[zitadel/terraform-provider-zitadel#164
- chore(deps): bump golang.org/x/net from 0.20.0 to 0.23.0 by
[@&#8203;dependabot](https://togithub.com/dependabot) in
[zitadel/terraform-provider-zitadel#170
- chore(deps): bump google.golang.org/protobuf from 1.32.0 to 1.33.0 by
[@&#8203;dependabot](https://togithub.com/dependabot) in
[zitadel/terraform-provider-zitadel#174

**Full Changelog**:
zitadel/terraform-provider-zitadel@v1.1.1...v1.2.0

</details>

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infrastructure/main.tf

@@ -28,7 +28,7 @@ terraform {
   required_providers {
     zitadel = {
       source  = "zitadel/zitadel"
-      version = "1.1.1"
+      version = "1.2.0"
     }
   }
 }