Extend unittest-nxp-neutron job time limit to 150 minutes.

Despite using parallel tests, the job was repeatedly killed just before it could finish.

Author: MartinPavella

.github/workflows/pull.yml

@@ -1428,7 +1428,7 @@ jobs:
       docker-image: ci-image:executorch-ubuntu-22.04-clang12
       submodules: 'recursive'
       ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
-      timeout: 120
+      timeout: 150
       script: |
         set -eux