Updating job to use zephyr sdk docker image

Author: BujSet

.github/workflows/trunk.yml

@@ -64,6 +64,7 @@ jobs:
       fail-fast: false
     with:
       runner: linux.2xlarge
+      docker-image: ci-image:executorch-ubuntu-22.04-zephyr-sdk
       submodules: 'recursive'
       ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
       timeout: 120