ci: update workflow to use dokku action for dev branch deployment

.gitea/workflows/main.yml

@@ -26,16 +26,10 @@ jobs:
           git_remote_url: 'ssh://dokku@v2.discours.io:22/discoursio-api'
           ssh_private_key: ${{ secrets.PROD_PRIVATE_KEY }}
 
-      - name: Push to dokku for main branch
+      - name: Push to dokku for dev branch
         if: github.ref == 'refs/heads/dev'
-        run: |
-          # Настройка Git
-          git config --global user.email "ci@dev.discours.io"
-          git config --global user.name "CI Bot"
-
-          # Добавление удаленного репозитория Dokku
-          git remote add dokku ssh://dokku@staging.discours.io:22/core
-          
-          # Push с отключением проверки хоста
-          GIT_SSH_COMMAND="ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no" \
-          git push -f dokku dev:main --force
+        uses: dokku/github-action@master
+        with:
+          branch: 'dev'
+          git_remote_url: 'ssh://dokku@staging.discours.io:22/core'
+          ssh_private_key: ${{ secrets.STAGING_PRIVATE_KEY }}