ci(gitea): use dedicated artix runner (runs-on: artix)

Drop the job-level container override now that a native Artix host runner
(artix-runner, label 'artix') is registered on Gitea. Jobs run directly in
the Artix runner container — no nested container, no Debian base image.
Remove the obsolete GitHub workflow file.

.gitea/workflows/build.yml

@@ -12,12 +12,12 @@ permissions:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
-    container:
-      image: artixlinux/artixlinux:base-dinit
+    runs-on: artix
 
     steps:
     - uses: actions/checkout@v4
+      with:
+        token: ${{ secrets.GITEA_TOKEN }}
 
     - name: Install deps
       run: |
@@ -74,9 +74,14 @@ jobs:
     - name: Generate index and package list
       run: python generate-index.py
 
-    - name: Deploy to Pages
-      uses: peaceiris/actions-gh-pages@v3
-      with:
-        github_token: ${{ secrets.GITHUB_TOKEN }}
-        publish_dir: ./repo
-        keep_files: false
+    - name: Deploy to repo branch
+      env:
+        GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+      run: |
+        git config user.name "gitea-actions"
+        git config user.email "actions@antergos-nas.taild4360b.ts.net"
+        git remote set-url origin "https://git:${GITEA_TOKEN}@antergos-nas.taild4360b.ts.net/Antergos-NeXT/antergos-packages.git"
+        git checkout -B repo
+        git add -f repo
+        git commit -m "Update packages [skip ci]" || echo "Nothing to commit"
+        git push origin repo --force