Generate comparative gas repports on PR (#3532)

Co-authored-by: Francisco Giordano <frangio.1@gmail.com>

.github/workflows/checks.yml

@@ -24,17 +24,24 @@ jobs:
 
   tests:
     runs-on: ubuntu-latest
+    env:
+      FORCE_COLOR: 1
+      GAS: true
     steps:
       - uses: actions/checkout@v3
       - name: Set up environment
         uses: ./.github/actions/setup
-      - run: npm run test
-        env:
-          FORCE_COLOR: 1
-          ENABLE_GAS_REPORT: true
-      - run: npm run test:inheritance
-      - run: npm run test:generation
+      - name: Run tests and generate gas report
+        run: npm run test
+      - name: Check linearisation of the inheritance graph
+        run: npm run test:inheritance
+      - name: Check proceduraly generated contracts are up-to-date
         if: github.repository != 'OpenZeppelin/openzeppelin-contracts-upgradeable'
+        run: npm run test:generation
+      - name: Compare gas costs
+        uses: ./.github/actions/gas-compare
+        with:
+          token: ${{ github.token }}
 
   coverage:
     if: github.repository != 'OpenZeppelin/openzeppelin-contracts-upgradeable'