fix: repair docker login syntax

.gitea/workflows/ci.yml

@@ -50,7 +50,10 @@ jobs:
       - name: Postavi kubeconfig
         run: |
           mkdir -p ~/.kube
-          echo "${{ secrets.KUBE_CONFIG }}" | base64 -d > ~/.kube/config
+          cat <<'EOF' > ~/.kube/config.base64
+          ${{ secrets.KUBE_CONFIG }}
+          EOF
+          base64 -d < ~/.kube/config.base64 > ~/.kube/config
           chmod 600 ~/.kube/config
 
       - name: Update image tag u manifestu