CI: drop cron schedule run (#633)

Author: lyie28

.github/workflows/docs-checker.yaml

@@ -4,8 +4,8 @@ on:
   push:
     branches:
       - '*'
-  schedule:
-    - cron: '0 9 * * 2'
+  # schedule:
+  #   - cron: '0 9 * * 2'
   workflow_dispatch:
 
 jobs:
@@ -194,4 +194,4 @@ jobs:
         run: |
           curl -X POST -H "Content-Type: application/json" \
             -d "{\"content\": \"<@762664509813817345> Checks successfully passed\"}" \
-            ${{ secrets.DOCS_DISCORD_WEBHOOK }}
+            ${{ secrets.DOCS_DISCORD_WEBHOOK }}