Add gas snapshot for L1 contracts

.github/pull_request_template.md

@@ -16,4 +16,5 @@
 
 - [ ] PR title corresponds to the body of PR (we generate changelog entries from PRs).
 - [ ] Tests for the changes have been added / updated.
+- [ ] Gas snapshot have been updated.
 - [ ] Documentation comments have been added / updated.

.github/workflows/l1-contracts-ci.yaml

@@ -145,3 +145,38 @@ jobs:
 
       - name: Compare
         run: diff tools/data/Verifier.sol l1-contracts/contracts/state-transition/Verifier.sol
+
+  check-gas-snapshot:
+    needs: [build, lint]
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Use Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+
+      - name: Use Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18.18.0
+          cache: yarn
+
+      - name: Install dependencies
+        run: yarn
+
+      - name: Restore artifacts cache
+        uses: actions/cache/restore@v3
+        with:
+          fail-on-cache-miss: true
+          key: artifacts-l1-${{ github.sha }}
+          path: |
+            l1-contracts/artifacts
+            l1-contracts/cache
+            l1-contracts/typechain
+
+      - name: Check gas snapshot
+        run: yarn gas-snapshot --check