Revert "ci: migrate GitHub Actions workflows from yarn to pnpm"

This reverts commit 0129f1c.

Author: MrCoder

.github/workflows/deploy-prod.yml

@@ -19,24 +19,19 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - name: Setup pnpm
-        uses: pnpm/action-setup@v4
-        with:
-          version: 8
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
-          cache: 'pnpm'
-      - run: pnpm install && pnpm build
-      - run: pnpm release
+      - run: yarn install && yarn build
+      - run: yarn release
       - name: Authenticate with Google Cloud
         uses: google-github-actions/auth@v2
         with:
           credentials_json: ${{ secrets.GOOGLE_APPLICATION_CREDENTIALS }}
 
-      - run: cd functions && pnpm install && pnpm deploy:config:prod
-      - run: pnpm deploy:prod
+      - run: cd functions && yarn install && yarn deploy:config:prod
+      - run: yarn deploy:prod
       - name: Upload Release Asset
         id: upload-release-asset
         uses: shogo82148/actions-upload-release-asset@v1

.github/workflows/deploy-staging.yml

@@ -15,21 +15,16 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - name: Setup pnpm
-        uses: pnpm/action-setup@v4
-        with:
-          version: 8
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
-          cache: 'pnpm'
-      - run: pnpm install && pnpm build
-      - run: pnpm release
-      - run: cd functions && pnpm install && pnpm deploy:config:staging --token ${{ secrets.FIREBASE_TOKEN }}
+      - run: yarn install && yarn build
+      - run: yarn release
+      - run: cd functions && yarn install && yarn deploy:config:staging --token ${{ secrets.FIREBASE_TOKEN }}
       - name: Deploy to staging
         if: github.actor != 'dependabot[bot]' && github.actor != 'dependabot-preview[bot]' # This conditional will skip the step for Dependabot PRs
-        run: pnpm deploy:staging --token ${{ secrets.FIREBASE_TOKEN }}
+        run: yarn deploy:staging --token ${{ secrets.FIREBASE_TOKEN }}
       - name: Upload artifacts # Find artifacts under actions/jobs
         uses: actions/upload-artifact@v4
         with: