Add benchmark to PR workflow

.github/workflows/pr.yaml

@@ -35,3 +35,24 @@ jobs:
         run: npm run lint
       - name: Test
         run: npm test
+
+      - name: Benchmark
+        run: npm run benchmark | tee benchmark.txt
+
+      - name: Download previous benchmark data
+        uses: actions/cache@v3
+        with:
+          path: ./cache
+          key: ${{ runner.os }}-benchmark
+
+      - name: Store benchmark result
+        uses: benchmark-action/github-action-benchmark@v1
+        with:
+          tool: 'benchmarkjs'
+          output-file-path: benchmark.txt
+          external-data-json-path: ./cache/benchmark-data.json
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          alert-threshold: '150%'
+          comment-on-alert: true
+          fail-on-alert: true
+          alert-comment-cc-users: '@Stuk'