test: change test_stateless_cluster_linux timeout 20m to 25m.

Author: youngsofun

.github/workflows/dev-linux.yml

@@ -189,7 +189,7 @@ jobs:
       - uses: ./.github/actions/test_stateless_standalone_linux
 
   test_stateless_cluster_linux:
-    timeout-minutes: 20
+    timeout-minutes: 30
     runs-on: [self-hosted, X64, Linux, development]
     needs: build_gnu
     steps: