removed matrix

.github/workflows/ci.yaml

@@ -12,23 +12,14 @@ on:
 
 jobs:
   ci:
-    runs-on: ${{ matrix.os }}
-    strategy:
-        matrix:
-            #os: [ubuntu-latest, windows-latest, macos-latest]
-            os: [ubuntu-latest]
-
+    runs-on: ubuntu-latest
     permissions:
       checks: write
       pull-requests: write    
 
     steps:
       - uses: actions/checkout@v3
 
-      - name: Setup Docker on macOS
-        if: matrix.os == 'macos-latest'      
-        uses: douglascamata/setup-docker-macos-action@v1-alpha
-
       # test prerequisites
       # dotnet 6,7,8
       - name: Install .NET 6
@@ -62,15 +53,7 @@ jobs:
 
       - name: Publish Test Results
         uses: EnricoMi/publish-unit-test-result-action@v2
-        if: matrix.os == 'ubuntu-latest'
-        with:
-          job_summary: true
-          files: |
-            **/*.trx
-      - name: Publish Test Results
-        uses: EnricoMi/publish-unit-test-result-action/composite@v2
-        if: matrix.os != 'ubuntu-latest'
         with:
           job_summary: true
           files: |
-            **/*.trx          
+            **/*.trx