Revert global.json to original SDK version 8.0.418

Co-authored-by: JerryNixon <1749983+JerryNixon@users.noreply.github.com>

Author: Copilot

global.json

@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "8.0.417",
+    "version": "8.0.418",
     "rollForward": "latestFeature"
   }
 }