docs: add DanielHabenicht as a contributor for code (#713)

* docs: update README.md

* docs: update .all-contributorsrc

---------

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>

.all-contributorsrc

@@ -564,7 +564,8 @@
       "profile": "https://danielhabenicht.github.io/",
       "contributions": [
         "bug",
-        "doc"
+        "doc",
+        "code"
       ]
     }
   ],

README.md

@@ -227,7 +227,7 @@ using SFTP. This requires the use of a PAM account (standard Linux account).
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/muhlba91"><img src="https://avatars.githubusercontent.com/u/653739?v=4?s=100" width="100px;" alt="Daniel Mühlbachler-Pietrzykowski"/><br /><sub><b>Daniel Mühlbachler-Pietrzykowski</b></sub></a><br /><a href="https://github.com/bpg/terraform-provider-proxmox/commits?author=muhlba91" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/windowsrefund"><img src="https://avatars.githubusercontent.com/u/512222?v=4?s=100" width="100px;" alt="windowsrefund"/><br /><sub><b>windowsrefund</b></sub></a><br /><a href="https://github.com/bpg/terraform-provider-proxmox/commits?author=windowsrefund" title="Tests">⚠️</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/Fabiosilvero"><img src="https://avatars.githubusercontent.com/u/22865938?v=4?s=100" width="100px;" alt="Fabiosilvero"/><br /><sub><b>Fabiosilvero</b></sub></a><br /><a href="https://github.com/bpg/terraform-provider-proxmox/commits?author=Fabiosilvero" title="Tests">⚠️</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="https://danielhabenicht.github.io/"><img src="https://avatars.githubusercontent.com/u/13590797?v=4?s=100" width="100px;" alt="DanielHabenicht"/><br /><sub><b>DanielHabenicht</b></sub></a><br /><a href="https://github.com/bpg/terraform-provider-proxmox/issues?q=author%3ADanielHabenicht" title="Bug reports">🐛</a> <a href="https://github.com/bpg/terraform-provider-proxmox/commits?author=DanielHabenicht" title="Documentation">📖</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://danielhabenicht.github.io/"><img src="https://avatars.githubusercontent.com/u/13590797?v=4?s=100" width="100px;" alt="DanielHabenicht"/><br /><sub><b>DanielHabenicht</b></sub></a><br /><a href="https://github.com/bpg/terraform-provider-proxmox/issues?q=author%3ADanielHabenicht" title="Bug reports">🐛</a> <a href="https://github.com/bpg/terraform-provider-proxmox/commits?author=DanielHabenicht" title="Documentation">📖</a> <a href="https://github.com/bpg/terraform-provider-proxmox/commits?author=DanielHabenicht" title="Code">💻</a></td>
     </tr>
   </tbody>
   <tfoot>