Add Callgrind runner to benchmark action

.github/workflows/benchmark.yml

@@ -181,6 +181,77 @@ jobs:
           git push
           cd ..
 
+  callgrind:
+    name: callgrind
+    strategy:
+      fail-fast: false
+      matrix:
+        bench:
+          - {
+              script: "run-benchmarks",
+              timeout: 12,
+              title: "Luau Benchmarks (Callgrind)",
+              cachegrindTitle: "Performance",
+              cachegrindIterCount: 20,
+            }
+        benchResultsRepo:
+          - { name: "luau-lang/benchmark-data", branch: "main" }
+
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Luau repository
+        uses: actions/checkout@v3
+
+      - name: Install valgrind
+        run: |
+          sudo apt-get install valgrind
+
+      - uses: actions/setup-python@v3
+        with:
+          python-version: "3.9"
+          architecture: "x64"
+
+      - name: Install python dependencies
+        run: |
+          python -m pip install requests
+          python -m pip install --user numpy scipy matplotlib ipython jupyter pandas sympy nose
+
+      - name: Build Luau
+        run: make config=release CALLGRIND=1 luau
+
+      - name: Run benchmark
+        run: |
+          python bench/bench.py --callgrind | tee ${{ matrix.bench.script }}-output.txt
+
+      - name: Checkout Benchmark Results repository
+        uses: actions/checkout@v3
+        with:
+          repository: ${{ matrix.benchResultsRepo.name }}
+          ref: ${{ matrix.benchResultsRepo.branch }}
+          token: ${{ secrets.BENCH_GITHUB_TOKEN }}
+          path: "./gh-pages"
+
+      - name: Store ${{ matrix.bench.title }} result
+        uses: Roblox/rhysd-github-action-benchmark@v-luau
+        with:
+          name: ${{ matrix.bench.title }}
+          tool: "benchmarkluau"
+          output-file-path: ./${{ matrix.bench.script }}-output.txt
+          external-data-json-path: ./gh-pages/dev/bench/data.json
+          github-token: ${{ secrets.BENCH_GITHUB_TOKEN }}
+
+      - name: Push benchmark results
+        if: github.event_name == 'push'
+        run: |
+          echo "Pushing benchmark results..."
+          cd gh-pages
+          git config user.name github-actions
+          git config user.email github@users.noreply.github.com
+          git add ./dev/bench/data.json
+          git commit -m "Add benchmarks results for ${{ github.sha }}"
+          git push
+          cd ..
+
   static-analysis:
     name: luau-analyze
     strategy: