Add vacuum linter

.github/workflows/lint.yaml

@@ -20,14 +20,32 @@ jobs:
         with:
           fetch-depth: '0'
 
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: '1.19'
+
+      - name: Install Vacuum
+        run: go install github.com/daveshanley/[email protected]
+
+      - name: Run vacuum linter
+        run: vacuum lint --no-style -d -e contracts/documentation.yaml
+
       - name: Setup Node.js 16.x
         uses: actions/setup-node@v3
         with:
           node-version: 16.x
           cache: npm
 
+      - uses: actions/cache@v3
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-
+
       - name: Install dependencies
         run: npm ci --ignore-scripts
 
-      - name: Install linters
+      - name: Run redocly and openapi-enforcer linters
         run: npm run lint