chore: add cargo-valgrind CI workflow

Author: molpopgen

.github/workflows/valgrind.yml

@@ -0,0 +1,38 @@
+on:
+  push:
+    branches: [main, dev]
+  pull_request:
+
+name: valgrind
+
+jobs:
+  cargo-valgrind:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        rust:
+          - stable
+    steps:
+      - name: Cancel Previous Runs
+        uses: styfle/[email protected]
+        with:
+          access_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - uses: actions/checkout@v2
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          submodules: recursive
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          override: true
+      - uses: Swatinem/rust-cache@v1
+      - run: sudo apt-get update -y
+        if: matrix.os == 'ubuntu-latest'
+      - run: sudo apt-get install -y valgrind
+        if: matrix.os == 'ubuntu-latest'
+      - run: cargo install cargo-valgrind
+      - name: run cargo valgrind
+        run: |
+            cargo valgrind test --all-features