ci: harden nightly token fallback

Author: Patel230

.github/workflows/nightly.yml

@@ -14,20 +14,24 @@ concurrency:
 jobs:
   create-nightly-tag:
     runs-on: ubuntu-latest
+    env:
+      HOMEBREW_TAP_APP_ID: ${{ secrets.HOMEBREW_TAP_APP_ID }}
+      HOMEBREW_TAP_APP_PRIVATE_KEY: ${{ secrets.HOMEBREW_TAP_APP_PRIVATE_KEY }}
     steps:
       - name: Generate token
         id: app-token
+        if: ${{ env.HOMEBREW_TAP_APP_ID != '' && env.HOMEBREW_TAP_APP_PRIVATE_KEY != '' }}
         uses: actions/create-github-app-token@1b10c78c7865c340bc4f6099eb2f838309f1e8c3 # v3.1.1
         with:
-          app-id: ${{ secrets.HOMEBREW_TAP_APP_ID }}
+          client-id: ${{ secrets.HOMEBREW_TAP_APP_ID }}
           private-key: ${{ secrets.HOMEBREW_TAP_APP_PRIVATE_KEY }}
           owner: ${{ github.repository_owner }}
-          repositories: cli
+          repositories: ${{ github.event.repository.name }}
 
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
         with:
           fetch-depth: 0
-          token: ${{ steps.app-token.outputs.token }}
+          token: ${{ steps.app-token.outputs.token || github.token }}
 
       - name: Create nightly tag
         run: |