Add workflow for running benchmarks on pr (#643)

.github/workflows/bench-pr.yml

@@ -0,0 +1,56 @@
+name: PR Benchmarks
+
+on:
+  pull_request:
+    types: [ labeled, synchronize ]
+    branches: [ "develop" ]
+  workflow_dispatch: { }
+
+permissions:
+  actions: write
+  contents: read
+  pull-requests: write
+
+jobs:
+  bench:
+    runs-on: ubuntu-latest-large
+    if: ${{ contains(github.event.head_commit.message, '[benchmark]') || github.event.label.name == 'benchmark' && github.event_name == 'pull_request' }}
+    steps:
+      # We remove the benchmark label first so that the workflow can be re-triggered.
+      - uses: actions-ecosystem/action-remove-labels@v1
+        with:
+          labels: benchmark
+
+      - uses: actions/checkout@v4
+      - uses: ./.github/actions/cleanup
+      - uses: ./.github/actions/setup-rust
+      - uses: ./.github/actions/setup-python
+
+      # The compression benchmarks rely on DuckDB being installed to convert CSV to Parquet
+      - name: Install DuckDB
+        uses: opt-nc/[email protected]
+        with:
+          version: v1.0.0
+
+      - name: Run benchmark
+        run: cargo bench --bench tpch_benchmark -- --output-format bencher | tee output.txt
+
+      - name: Store benchmark result
+        uses: benchmark-action/github-action-benchmark@v1
+        with:
+          name: Vortex benchmarks
+          tool: 'cargo'
+          gh-pages-branch: gh-pages-bench
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          output-file-path: output.txt
+          summary-always: true
+          comment-always: true
+          auto-push: false
+          save-data-file: false
+          fail-on-alert: false
+        env:
+          # AWS Credentials for R2 storage tests
+          AWS_BUCKET: vortex-test
+          AWS_ENDPOINT: ${{ secrets.AWS_ENDPOINT }}
+          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}