Update .github/workflows/firebase-hosting-merge.yml

Co-authored-by: Simone Basso <bassosimone@gmail.com>

Author: robertodauria

.github/workflows/firebase-hosting-merge.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           node-version: '20'
       - run: npm ci