fix: use canina runner with pre-installed SSH

.gitea/workflows/deploy.yml

@@ -5,17 +5,8 @@ on:
 
 jobs:
   deploy:
-    runs-on: ubuntu-latest
-    defaults:
-      run:
-        shell: sh
+    runs-on: canina
     steps:
-      - name: Install SSH
-        run: |
-          V=$(cut -d'.' -f1-2 /etc/alpine-release)
-          echo "http://dl-cdn.alpinelinux.org/alpine/v$V/main" > /etc/apk/repositories
-          echo "http://dl-cdn.alpinelinux.org/alpine/v$V/community" >> /etc/apk/repositories
-          apk add --no-cache openssh-client
       - name: Setup SSH key
         env:
           SSH_KEY: ${{ secrets.DEPLOY_KEY }}