Update validate-markdown.yaml

Author: ralfhandl

.github/workflows/validate-markdown.yaml

@@ -31,6 +31,6 @@ jobs:
       - name: Check links in markdown files
         uses: umbrelladocs/action-linkspector@v1
         with:
-          reporter: github-pr-review # github-check
+          reporter: github-check
           fail_level: any
           filter_mode: nofilter