No longer run on macOS and Linux in parallel

Author: jeremydubreil

.github/workflows/integration-test.yml

@@ -17,13 +17,7 @@ env:
 
 jobs:
   build:
-    strategy:
-      fail-fast: false
-      matrix:
-        os:
-          - macos-latest
-          - ubuntu-latest
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3