ci: add read contents permission

Author: danielroe

.github/workflows/release-nightly.yml

@@ -18,6 +18,7 @@ jobs:
     if: ${{ github.repository_owner == 'nuxt' }}
     permissions:
       id-token: write
+      contents: read
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       - run: corepack enable
@@ -34,7 +35,6 @@ jobs:
         run: pnpm dev:prepare
 
       - name: 📦 release pkg.pr.new
-        if: github.event_name != 'push'
         run: pnpm pkg-pr-new publish --compact
 
       - name: 📦 release nightly