Merge pull request 'chore(ci/cd): replaced registry url.' (#15) from patch-2-gitea-registry into main

Reviewed-on: #15

.gitea/workflows/docker-publish.yml

@@ -19,6 +19,9 @@ on:
         required: true
         type: string
 
+env:
+  REGISTRY: git.arthurerlich.de
+
 jobs:
   build-push:
     runs-on: ubuntu-latest
@@ -40,12 +43,6 @@ jobs:
           fi
           git checkout "refs/tags/${{ inputs.tag }}"
 
-      # Strip the protocol from the server URL to get the registry hostname.
-      # e.g. https://gitea.example.com → gitea.example.com
-      - name: Derive registry hostname
-        run: |
-          echo "REGISTRY=$(echo '${{ gitea.server_url }}' | sed 's|https://||;s|http://||')" >> $GITHUB_ENV
-
       # Generates OCI-compliant tags and labels from the provided release tag.
       # 1.2.3 → image tags: 1.2.3 / 1.2 / 1
       - name: Extract Docker metadata