ci: run valgrind on test suite

Signed-off-by: simonsan <14062932+simonsan@users.noreply.github.com>

.github/workflows/valgrind.yml

@@ -0,0 +1,36 @@
+name: Valgrind
+
+on:
+  schedule:
+    - cron: '0 23 * * WED' # Run every Wednesday at 23:00 (UTC)
+
+# If new code is pushed to a PR branch, then cancel in progress workflows for that PR. Ensures that
+# we don't waste CI time, and returns results quicker https://github.com/jonhoo/rust-ci-conf/pull/5
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  valgrind:
+    name: Run Valgrind on Test Suite
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Install llvmpipe and lavapipe
+      run: |
+        sudo apt-get update -y -qq
+        sudo add-apt-repository ppa:kisak/kisak-mesa -y
+        sudo apt-get update
+        sudo apt install -y libegl1-mesa libgl1-mesa-dri libxcb-xfixes0-dev mesa-vulkan-drivers
+
+    - name: Install valgrind
+      run: |
+        sudo apt-get install valgrind
+
+    - name: Run cargo-valgrind
+      env:
+        CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUNNER: "valgrind -s --leak-check=full --show-leak-kinds=all --error-exitcode=1"
+      # Looking for vulnerabilities
+      run: |
+        cargo test