samples: ipc: ipc_service: adjust timeout

Timeout adjusted to execution time.

Signed-off-by: Piotr Kosycarz <[email protected]>

Author: nordic-piks

samples/ipc/ipc_service/sample.yaml

@@ -91,6 +91,7 @@ tests:
       - nrf54h20dk/nrf54h20/cpuapp
     integration_platforms:
       - nrf54h20dk/nrf54h20/cpuapp
+    timeout: 20
   sample.ipc.ipc_service.nrf54h20dk_cpuapp_cpuppr_icmsg:
     platform_allow:
       - nrf54h20dk/nrf54h20/cpuapp
@@ -99,3 +100,4 @@ tests:
     extra_args:
       - FILE_SUFFIX=cpuppr
       - ipc_service_SNIPPET=nordic-ppr
+    timeout: 20