chore(ci): improve ci.yaml, use expression

Author: oldratlee

.github/workflows/ci.yaml

@@ -3,24 +3,15 @@
 
 name: CI
 on: [ push, pull_request, workflow_dispatch ]
-jobs:
 
-  test-on-ubuntu:
-    runs-on: ubuntu-latest
-    timeout-minutes: 5
-    name: Test on ubuntu
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          submodules: recursive
-      - run: test-cases/integration-test.sh
+jobs:
 
-  test-on-macos:
+  test:
     runs-on: ${{ matrix.os }}
     timeout-minutes: 5
     strategy:
       matrix:
-        os: [ macos-11, macos-12 ]
+        os: [ ubuntu-latest, macos-11, macos-12 ]
       fail-fast: false
       max-parallel: 64
     name: Test on ${{ matrix.os }}
@@ -30,4 +21,6 @@ jobs:
         with:
           submodules: recursive
       - run: brew install coreutils gnu-sed
+        # https://docs.github.com/en/actions/learn-github-actions/expressions
+        if: ${{ startsWith(matrix.os, 'macos') }}
       - run: test-cases/integration-test.sh