fix: use deploy key for release workflow push (#24)

Deploy key bypasses branch protection ruleset.
GITHUB_TOKEN cannot bypass rulesets on personal repos.

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: yerzhansa

.github/workflows/release.yml

@@ -12,6 +12,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
+          ssh-key: ${{ secrets.DEPLOY_KEY }}
           fetch-depth: 0
 
       - uses: actions/setup-node@v4