Add CodSpeed performance benchmarks and CI

.github/workflows/codspeed.yml

@@ -0,0 +1,45 @@
+name: CodSpeed
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  # `workflow_dispatch` allows CodSpeed to trigger backtest
+  # performance analysis in order to generate initial data.
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  id-token: write # for OpenID Connect authentication with CodSpeed
+
+concurrency:
+  group: codspeed-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
+jobs:
+  benchmarks:
+    name: Run benchmarks
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        with:
+          persist-credentials: false
+
+      # The Rust toolchain (channel 1.94.1) is selected by rust-toolchain.toml.
+      # setup-rust handles caching and installs the cargo-codspeed binary.
+      - name: Setup Rust toolchain, cache and cargo-codspeed binary
+        uses: moonrepo/setup-rust@cafffba5d5c8bc38a5120e6e60f3561d541a47cd # v0
+        with:
+          cache-target: release
+          bins: cargo-codspeed
+
+      - name: Build the benchmark target(s)
+        run: cargo codspeed build --workspace
+
+      - name: Run the benchmarks
+        uses: CodSpeedHQ/action@a4a36bb07c0638b0b4ca52bf1f3dad1b4289e52f # v4.18.1
+        with:
+          mode: simulation
+          run: cargo codspeed run