🧱 add CI workflows for contracts

.github/workflows/contracts_build.yml

@@ -0,0 +1,21 @@
+name: Build
+
+on: [push, pull_request]
+
+env:
+  SCARB_VERSION: 2.3.1
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: software-mansion/setup-scarb@v1
+        with:
+          scarb-version: "2.3.1"
+      - name: Check cairo format
+        run: scarb fmt --check
+        working-directory: contracts
+      - name: Build cairo programs
+        run: scarb build
+        working-directory: contracts

.github/workflows/contracts_test.yml

@@ -0,0 +1,21 @@
+name: Test
+
+on: [push, pull_request]
+
+env:
+  SCARB_VERSION: 2.3.1
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: software-mansion/setup-scarb@v1
+        with:
+          scarb-version: ${{ env.SCARB_VERSION }}
+      - uses: foundry-rs/setup-snfoundry@v2
+        with:
+          starknet-foundry-version: 0.10.1
+      - name: Run cairo tests
+        run: snforge test
+        working-directory: contracts