chore: Update alpha.yml workflow to remove pnpm cache setup step

.github/workflows/alpha.yml

@@ -352,14 +352,6 @@ jobs:
         run: |
           echo "STORE_PATH=$(pnpm store path)" >> $GITHUB_OUTPUT
 
-      - uses: actions/cache@v3
-        name: Setup pnpm cache
-        with:
-          path: ${{ steps.pnpm-cache.outputs.STORE_PATH }}
-          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
-          restore-keys: |
-            ${{ runner.os }}-pnpm-store-
-
       - name: Install dependencies
         run: pnpm install