ci: add puppeteer regression test

.github/workflows/zig-test.yml

@@ -69,9 +69,6 @@ jobs:
   zig-build-release:
     name: zig build release
 
-    # Don't run the CI on PR
-    if: github.event_name != 'pull_request'
-
     runs-on: ubuntu-latest
 
     steps:
@@ -86,6 +83,14 @@ jobs:
       - name: zig build release
         run: zig build -Doptimize=ReleaseSafe -Dengine=v8
 
+      - name: upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: lightpanda-build-release
+          path: |
+            zig-out/bin/lightpanda
+          retention-days: 1
+
   zig-test:
     name: zig test
 
@@ -146,6 +151,10 @@ jobs:
     name: demo-puppeteer
     needs: zig-build-dev
 
+    env:
+      MAX_MEMORY: 23456
+      MAX_AVG_DURATION: 22
+
     runs-on: ubuntu-latest
 
     steps:
@@ -159,12 +168,21 @@ jobs:
       - name: download artifact
         uses: actions/download-artifact@v4
         with:
-          name: lightpanda-build-dev
+          name: lightpanda-build-release
 
       - run: chmod a+x ./lightpanda
 
       - name: run puppeteer
         run: |
-          python3 -m http.server 1234 -d ./public &
-          ./lightpanda &
-          RUNS=2 npm run bench-puppeteer-cdp
+          go run ws/main.go &
+          /usr/bin/time -f'%M' -omrs.out ./lightpanda &
+          RUNS=100 npm run bench-puppeteer-cdp |tee output
+
+      - name: memory regression
+        run: |
+          test "`cat mrs.out`" -le "$MAX_MEMORY"
+
+      - name: duration regression
+        run: |
+          test "`cat output|grep 'avg run'|sed 's/avg run duration (ms) //'`" -le "$MAX_AVG_DURATION"
+