Add timeout for ut test (opea-project#773)

Signed-off-by: chensuyue <[email protected]>

Author: chensuyue

.github/workflows/mix-megaservice-test.yml

@@ -32,6 +32,7 @@ env:
 jobs:
   MegaService:
     runs-on: gaudi
+    timeout-minutes: 10
     steps:
       - name: Clean Up Working Directory
         run: |