[CONFIG] [Github Actions] Now use fixed version of markdownlint

Author: Gonzalo Diaz

.github/workflows/markdown-lint.yml

@@ -32,7 +32,12 @@ jobs:
           node-version: ${{ matrix.node-version }}
 
       - name: Install dependencies
-        run: npm install -g markdownlint-cli
+        run: >
+          npm install -g --ignore-scripts markdownlint-cli@0.47.0
+
+      - name: Test dependencies
+        run: |
+          markdownlint --version
 
       - name: Lint
         run: >