ci: add CodSpeed benchmarks for intent CLI

Author: Sheraff

.github/workflows/benchmarks.yml

@@ -0,0 +1,44 @@
+name: Benchmarks
+
+on:
+  push:
+    branches:
+      - 'main'
+    paths:
+      - 'packages/**'
+      - 'benchmarks/**'
+      - 'pnpm-lock.yaml'
+      - 'pnpm-workspace.yaml'
+  pull_request:
+    paths:
+      - 'packages/**'
+      - 'benchmarks/**'
+      - 'pnpm-lock.yaml'
+      - 'pnpm-workspace.yaml'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  id-token: write
+
+env:
+  NX_CLOUD_ACCESS_TOKEN: ${{ secrets.NX_CLOUD_ACCESS_TOKEN }}
+  NX_NO_CLOUD: true
+
+jobs:
+  benchmarks:
+    name: Run intent CodSpeed benchmark
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6.0.1
+
+      - name: Setup Tools
+        uses: tanstack/config/.github/setup@main
+
+      - name: Run intent CodSpeed benchmark
+        continue-on-error: true
+        uses: CodSpeedHQ/action@v4
+        with:
+          mode: simulation
+          run: WITH_INSTRUMENTATION=1 pnpm --dir benchmarks/intent test:perf