Update image registry (#1334)

### Describe what your pull request does and which issue you’re targeting

I moved my images from dockerhub to the codeberg registry, this updates the location for woodpecker.

<!-- Create a new issue, if it doesn't exist yet -->
<br><br>

<!-- Make sure you are targeting the "main" branch, pull requests on release branches are only allowed for bug fixes. -->

- [x] I carefully read the [contribution guidelines](https://codeberg.org/gitnex/GitNex/wiki/Contributing).
- [x] I'm following the code standards as defined [here](https://codeberg.org/gitnex/GitNex/wiki/Code-Standards).
- [x] By submitting this pull request, I permit GitNex to license my work under
  the [GNU General Public License v3](https://codeberg.org/GitNex/GitNex/src/branch/main/LICENSE).

Reviewed-on: https://codeberg.org/gitnex/GitNex/pulls/1334
Co-authored-by: qwerty287 <qwerty287@noreply.codeberg.org>
Co-committed-by: qwerty287 <qwerty287@noreply.codeberg.org>

.woodpecker/check.yml

@@ -1,6 +1,6 @@
 steps:
   author-header:
-    image: qwerty287/woodpecker-regex-check
+    image: codeberg.org/qwerty287/woodpecker-regex-check
     settings:
       pattern: "*.java"
       regex: " \\\\* \\\\@author [\\\\S\\\\s]+"