temporary benchmarks wf

.github/workflows/benchmarks.yml

@@ -0,0 +1,22 @@
+name: coverage
+
+on:
+  push:
+
+jobs:
+  # test the crate
+  row-format-bench:
+    name: Row format bench
+    runs-on: ubuntu-latest
+    container:
+      image: amd64/rust
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+      - name: Setup Rust toolchain
+        uses: ./.github/actions/setup-builder
+      - name: Install critcmp
+        run: cargo install critcmp
+      - name: Benchmark branch
+        run: cargo bench --all-features --bench row_format -- --save-baseline branch