fix: correct GitHub Actions matrix generation format

- Convert multi-line JSON to single-line format for GITHUB_OUTPUT compatibility
- Fix test workflow matrix generation that was causing CI failures

Author: thc1006

.github/workflows/test.yml

@@ -117,19 +117,8 @@ jobs:
 
         # Simple matrix generation with proper JSON formatting
         if [ "$components" = "all" ]; then
-          matrix=$(cat << 'EOF'
-        [
-          {"name": "orchestrator", "path": "orchestrator", "type": "go", "requires_k8s": false, "timeout": "10m"},
-          {"name": "vnf-operator", "path": "adapters/vnf-operator", "type": "go", "requires_k8s": true, "timeout": "15m"},
-          {"name": "o2-client", "path": "o2-client", "type": "go", "requires_k8s": false, "timeout": "10m"},
-          {"name": "tn", "path": "tn", "type": "go", "requires_k8s": true, "timeout": "12m"},
-          {"name": "cn-dms", "path": "cn-dms", "type": "go", "requires_k8s": true, "timeout": "10m"},
-          {"name": "ran-dms", "path": "ran-dms", "type": "go", "requires_k8s": true, "timeout": "10m"},
-          {"name": "pkg-security", "path": "pkg/security", "type": "go", "requires_k8s": false, "timeout": "8m"},
-          {"name": "nlp", "path": "nlp", "type": "python", "requires_k8s": false, "timeout": "8m"}
-        ]
-        EOF
-        )
+          # Single-line JSON for GitHub Actions compatibility
+          matrix='[{"name": "orchestrator", "path": "orchestrator", "type": "go", "requires_k8s": false, "timeout": "10m"}, {"name": "vnf-operator", "path": "adapters/vnf-operator", "type": "go", "requires_k8s": true, "timeout": "15m"}, {"name": "o2-client", "path": "o2-client", "type": "go", "requires_k8s": false, "timeout": "10m"}, {"name": "tn", "path": "tn", "type": "go", "requires_k8s": true, "timeout": "12m"}, {"name": "cn-dms", "path": "cn-dms", "type": "go", "requires_k8s": true, "timeout": "10m"}, {"name": "ran-dms", "path": "ran-dms", "type": "go", "requires_k8s": true, "timeout": "10m"}, {"name": "pkg-security", "path": "pkg/security", "type": "go", "requires_k8s": false, "timeout": "8m"}, {"name": "nlp", "path": "nlp", "type": "python", "requires_k8s": false, "timeout": "8m"}]'
         else
           # Simple fallback for specific components
           matrix='[{"name": "orchestrator", "path": "orchestrator", "type": "go", "requires_k8s": false, "timeout": "10m"}]'