chore(ci): run on default runners (#2727)

Author: StarpTech

.github/workflows/router-ci.yaml

@@ -201,7 +201,7 @@ jobs:
           codecov-token: ${{ secrets.CODECOV_TOKEN }}
 
   integration_test:
-    runs-on: ubuntu-latest-l
+    runs-on: ubuntu-latest
     timeout-minutes: 30
     env:
       GOMAXPROCS: 4