add retry for pr link check

Signed-off-by: Bharath Nallapeta <nr.bharath97@gmail.com>

Author: bnallapeta

.github/workflows/pr-link-check.yaml

@@ -63,6 +63,8 @@ jobs:
           --fallback-extensions "md"
           --github-token "${GITHUB_TOKEN}"
           --insecure
+          --max-retries 3
+          --retry-wait-time 5
           --exclude-all-private
           --no-progress
           $(cat changed-files.txt | tr '\n' ' ')