fix(ci): switch integration test runner to ubuntu-latest

Author: guoj14

.github/workflows/ts-sdk-ci.yml

@@ -41,7 +41,7 @@ jobs:
           pnpm test:unit
 
   integration-test:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     timeout-minutes: 30
     steps:
       - uses: actions/checkout@v4