update github flows

Author: FanyCastro

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

@@ -11,6 +11,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Install pnpm
+        run: npm install -g pnpm
       - run: pnpm build
       - uses: FirebaseExtended/action-hosting-deploy@v0
         with:

.github/workflows/firebase-hosting-pull-request.yml

@@ -13,6 +13,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Install pnpm
+        run: npm install -g pnpm
       - run: pnpm build
       - uses: FirebaseExtended/action-hosting-deploy@v0
         with: