fix: add only one CI

Author: niccoloraspa

.github/workflows/build.yaml

@@ -3,9 +3,12 @@ name: Build mkosi Image
 on:
   workflow_dispatch:
   push:
-    branches: [ main ]
+    branches:
+      - main
+      - feat/add-warp-ci # TODO: Remove this once the CI is working
   pull_request:
-    branches: [ main ]
+    branches:
+      - main
 
 jobs:
   build-mkosi:
@@ -30,6 +33,12 @@ jobs:
       #     restore-keys: |
       #       ${{ runner.os }}-mkosi-cache-
 
+      - name: Enable user namespaces for mkosi  
+        run: |
+          echo 'kernel.unprivileged_userns_clone=1' | sudo tee -a /etc/sysctl.conf
+          sudo sysctl -p
+          cat /proc/sys/kernel/unprivileged_userns_clone
+
       - name: Install system dependencies
         run: |
           sudo apt-get update
@@ -46,4 +55,4 @@ jobs:
       - name: Build mkosi image using nix
         run: |
           mkdir -p  ~/.cache/mkosi/
-          ix develop --command mkosi --force -I tdx-dummy.conf
+          nix develop --command mkosi --force -I tdx-dummy.conf