ci: lint_links: schedule action to run on Tuesdays

Author: elopez

.github/workflows/lint_links.yml

@@ -12,8 +12,8 @@ on:
       - ".github/workflows/lint_links.yml"
       - "**.md"
   schedule:
-    # run CI at 09:00, on day 1 of the month even if no PRs/merges occur
-    - cron: "0 9 1 * *"
+    # run CI at 09:00 every Tuesday even if no PRs/merges occur
+    - cron: "0 9 * * 2"
 
 jobs:
   markdown-link-check: