Added Microsoft authentication and Entra portals to exclude list

Author: eshanrnh

.github/lychee.toml

@@ -61,6 +61,11 @@ exclude = [
   '^https?://localhost',
   '^https?://127\\.0\\.0\\.1',
   '^https://www\\.linkedin\\.com',
+
+   # Exclude Microsoft authentication and Entra portals
+  'entra\\.microsoft\\.com',
+  'login\\.microsoftonline\\.com',
+  'portal\\.azure\\.com',
 
   # Exclude all issues.umbraco.org - unreliable and often returns 522
   'http://issues\\.umbraco\\.org',