use last successful version of markdown link check module - retry

Author: lalitb

.github/workflows/markdown-link-check.yml

@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install markdown-link-check
-        run: npm install -g markdown-link-check#3.12.0
+        run: npm install -g markdown-link-check@3.12.0
 
       - name: Run markdown-link-check
         run: |