Use ubuntu runner label for CI

.gitea/workflows/build.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   build:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -29,3 +29,4 @@ jobs:
         with:
           name: website-dist
           path: apps/website/.output/public
+