ci: add cairo and commitlint

.github/workflows/cairo.yaml

@@ -0,0 +1,21 @@
+name: cairo
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+  pull_request:
+permissions: read-all
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: software-mansion/setup-scarb@v1
+        with:
+          scarb-version: "2.7.0"
+      - run: scarb fmt --check
+      - run: scarb build
+      - run: scarb test

.github/workflows/commitlint.yaml

@@ -0,0 +1,21 @@
+name: commitlint
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+  pull_request:
+permissions: read-all
+
+jobs:
+  lint-commits:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - run: npm install --save-dev @commitlint/{cli,config-conventional}
+      - run: |
+          echo "module.exports = { extends: ['@commitlint/config-conventional'] };" > commitlint.config.js
+      - run: npx commitlint --from HEAD~1 --to HEAD --verbose