fix: use GIT_SSH_COMMAND to bypass ssh known_hosts check for AUR in CI

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Piliii

.github/workflows/release.yml

@@ -120,16 +120,13 @@ jobs:
 
       - name: Set up SSH
         run: |
-          mkdir -p ~/.ssh
-          chmod 700 ~/.ssh
+          mkdir -p ~/.ssh && chmod 700 ~/.ssh
           echo "${{ secrets.AUR_SSH_KEY }}" > ~/.ssh/id_rsa
           chmod 600 ~/.ssh/id_rsa
-          ssh-keyscan -H aur.archlinux.org > ~/.ssh/known_hosts
-          chmod 644 ~/.ssh/known_hosts
-          printf 'Host aur.archlinux.org\n  IdentityFile ~/.ssh/id_rsa\n  StrictHostKeyChecking accept-new\n' > ~/.ssh/config
-          chmod 600 ~/.ssh/config
 
       - name: Update PKGBUILD and push to AUR
+        env:
+          GIT_SSH_COMMAND: ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i ~/.ssh/id_rsa
         run: |
           VERSION=$(grep '^version:' clients/app/pubspec.yaml | sed 's/version: //;s/+.*//')
           TARBALL_URL="https://github.com/${{ github.repository }}/releases/download/v${VERSION}/LibreNotes-${VERSION}-linux-x86_64.tar.gz"