Change runner to ubuntu-latest for workflow

Signed-off-by: Anshul  <137977998+sudo-anshul@users.noreply.github.com>

Author: sudo-anshul

.github/workflows/bot-coderabbit-plan-trigger.yml

@@ -11,7 +11,7 @@ permissions:
 
 jobs:
   coderabbit_plan_trigger:
-    runs-on: hl-sdk-py-lin-md
+    runs-on: ubuntu-latest
     concurrency:
       group: coderabbit-plan-${{ github.event.issue.number }}
       cancel-in-progress: false