ci: Fix destroy benchmark env workflow

Fix the workflow and run it at 01:00 before the nightly benchmark is run.
That's because there's a limit how many reserved hosts we can provision
at a time.

.github/workflows/benchmark-destroy-nightly.yml

@@ -2,7 +2,7 @@ name: Destroy Benchmark Env
 
 on:
   schedule:
-    - cron: '30 4 * * *'
+    - cron: '0 1 * * *'
   workflow_dispatch:
 
 permissions:
@@ -25,16 +25,15 @@ jobs:
           tenant-id: ${{ secrets.BENCHMARK_ARM_TENANT_ID }}
           subscription-id: ${{ secrets.BENCHMARK_ARM_SUBSCRIPTION_ID }}
 
-      - run: Setup node
+      - run: corepack enable
       - uses: actions/setup-node@v4.0.2
         with:
           node-version: 20.x
-          cache: pnpm
+          cache: 'pnpm'
 
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
 
       - name: Destroy cloud env
-        if: github.event.inputs.debug == 'true'
         run: pnpm destroy-cloud-env
         working-directory: packages/@n8n/benchmark