fix: failing ci linkcheck in markdown (#21222)

Update timeout and retry configuration
Increased timeout and adjusted retry settings.

Author: deependujha

.github/markdown-links-config.json

@@ -23,8 +23,8 @@
       }
     }
   ],
-  "timeout": "20s",
+  "timeout": "30s",
   "retryOn429": true,
-  "retryCount": 5,
-  "fallbackRetryDelay": "20s"
+  "retryCount": 10,
+  "fallbackRetryDelay": "10s"
 }