chore(deps): update nosborn/github-action-markdown-cli action to v3.4.0

Author: renovate[bot]

.github/workflows/validation.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Checkout Code
         uses: actions/checkout@v4
       - name: Validate Markdown Sources
-        uses: nosborn/github-action-markdown-cli@v3.3.0
+        uses: nosborn/github-action-markdown-cli@v3.4.0
         with:
           files: .
   package-lock-is-up-to-date: