CI: registry login via job-scoped GITEA_TOKEN (bot token secret is not configured per-repo)

.gitea/workflows/build.yml

@@ -71,7 +71,7 @@ jobs:
           docker rm -f dsh-smoke
 
       - name: Login to gitea.archeon.io registry
-        run: echo "${{ secrets.GITEA_BOT_TOKEN }}" | docker login gitea.archeon.io -u hermes --password-stdin
+        run: echo "${{ secrets.GITEA_TOKEN }}" | docker login gitea.archeon.io -u ${{ gitea.actor }} --password-stdin
 
       - name: Push images
         env: