chore(deps): update terraform proxmox to v0.68.0 (#324)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [proxmox](https://registry.terraform.io/providers/bpg/proxmox)
([source](https://redirect.github.com/bpg/terraform-provider-proxmox)) |
required_provider | minor | `0.67.1` -> `0.68.0` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>bpg/terraform-provider-proxmox (proxmox)</summary>

###
[`v0.68.0`](https://redirect.github.com/bpg/terraform-provider-proxmox/blob/HEAD/CHANGELOG.md#0680-2024-11-26)

[Compare
Source](https://redirect.github.com/bpg/terraform-provider-proxmox/compare/v0.67.1...v0.68.0)

##### Features

- **node:** add support for node config API
([#&#8203;1482](https://redirect.github.com/bpg/terraform-provider-proxmox/issues/1482))
([3e025fd](https://redirect.github.com/bpg/terraform-provider-proxmox/commit/3e025fd6c82d7b8d2bc141ce6c029f11b6da9ba3))
- **vm:** add bz2 (bzip2) as a valid download file compression algorithm
([#&#8203;1655](https://redirect.github.com/bpg/terraform-provider-proxmox/issues/1655))
([e29dc53](https://redirect.github.com/bpg/terraform-provider-proxmox/commit/e29dc5364fa3d8de65010ffa321e3b44e79bd818))

##### Bug Fixes

- **vm:** add retries to VM `update` operation
([#&#8203;1650](https://redirect.github.com/bpg/terraform-provider-proxmox/issues/1650))
([d92710d](https://redirect.github.com/bpg/terraform-provider-proxmox/commit/d92710d0b5c54a816fc06785553c13af8a13131c))

##### Miscellaneous

- **ci:** remove mergify config
([#&#8203;1652](https://redirect.github.com/bpg/terraform-provider-proxmox/issues/1652))
([45eede7](https://redirect.github.com/bpg/terraform-provider-proxmox/commit/45eede724b70fedea6d4dd32f66409324e36930d))
- **ci:** update qodana config
([#&#8203;1653](https://redirect.github.com/bpg/terraform-provider-proxmox/issues/1653))
([6dad660](https://redirect.github.com/bpg/terraform-provider-proxmox/commit/6dad6601370c15f3a2c5c39ac6acd28fd7a2be80))
- **deps:** update module github.com/golangci/golangci-lint (v1.62.0 →
v1.62.2) in /tools
([#&#8203;1657](https://redirect.github.com/bpg/terraform-provider-proxmox/issues/1657))
([826b406](https://redirect.github.com/bpg/terraform-provider-proxmox/commit/826b406d89160c44e66ed0cbddd874388bab51d3))
- **deps:** update module github.com/stretchr/testify (v1.9.0 → v1.10.0)
([#&#8203;1654](https://redirect.github.com/bpg/terraform-provider-proxmox/issues/1654))
([7967299](https://redirect.github.com/bpg/terraform-provider-proxmox/commit/796729935ce8ff2ef97a2562f464113a446e6946))

</details>

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provision/gpc/main.tf

@@ -7,7 +7,7 @@ terraform {
     }
     proxmox = {
       source  = "bpg/proxmox"
-      version = "0.67.1"
+      version = "0.68.0"
     }
   }
 }

provision/servonet/main.tf

@@ -7,7 +7,7 @@ terraform {
     }
     proxmox = {
       source  = "bpg/proxmox"
-      version = "0.67.1"
+      version = "0.68.0"
     }
     talos = {
       source  = "siderolabs/talos"