chore(deps): update dependency hcloud to v2.6.0 (#686)

This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
| [hcloud](https://redirect.github.com/hetznercloud/hcloud-python)
([changelog](https://redirect.github.com/hetznercloud/hcloud-python/blob/main/CHANGELOG.md))
| `2.5.4` -> `2.6.0` |
[![age](https://developer.mend.io/api/mc/badges/age/pypi/hcloud/2.6.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/hcloud/2.5.4/2.6.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>hetznercloud/hcloud-python (hcloud)</summary>

###
[`v2.6.0`](https://redirect.github.com/hetznercloud/hcloud-python/blob/HEAD/CHANGELOG.md#v260)

[Compare
Source](https://redirect.github.com/hetznercloud/hcloud-python/compare/v2.5.4...v2.6.0)

##### Features

- add category property to server type
([#&#8203;549](https://redirect.github.com/hetznercloud/hcloud-python/issues/549))

##### Bug Fixes

- rename `ClientEntityBase` to `ResourceClientBase`
([#&#8203;532](https://redirect.github.com/hetznercloud/hcloud-python/issues/532))

</details>

---

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scripts/vendor.py

@@ -22,7 +22,7 @@ from textwrap import dedent
 logger = logging.getLogger("vendor")
 
 HCLOUD_SOURCE_URL = "https://github.com/hetznercloud/hcloud-python"
-HCLOUD_VERSION = "v2.5.4"
+HCLOUD_VERSION = "v2.6.0"
 HCLOUD_VENDOR_PATH = "plugins/module_utils/vendor/hcloud"