Add upload-artifact safe-output test workflow and compiler test (#25547)

Author: github-actions[bot]

pkg/cli/workflows/test-copilot-upload-artifact.md

@@ -0,0 +1,23 @@
+---
+on:
+  workflow_dispatch:
+permissions:
+  contents: read
+  actions: read
+engine: copilot
+safe-outputs:
+  upload-artifact:
+    max-uploads: 1
+    allowed-paths:
+      - "output/**"
+---
+
+# Test Copilot Upload Artifact
+
+Test the `upload_artifact` safe output type with the Copilot engine.
+
+## Task
+
+Create a small text file at `output/result.txt` with the content "Hello from upload-artifact test" and upload it as a GitHub Actions artifact named "test-artifact".
+
+Output results in JSONL format using the `upload_artifact` tool.

pkg/workflow/compiler_safe_outputs_config_test.go

@@ -589,6 +589,21 @@ func TestAddHandlerManagerConfigEnvVar(t *testing.T) {
 			checkJSON:    true,
 			expectedKeys: []string{"upload_asset"},
 		},
+		{
+			name: "upload_artifact config",
+			safeOutputs: &SafeOutputsConfig{
+				UploadArtifact: &UploadArtifactConfig{
+					MaxUploads:   1,
+					MaxSizeBytes: 104857600,
+					AllowedPaths: []string{"output/**"},
+				},
+			},
+			checkContains: []string{
+				"GH_AW_SAFE_OUTPUTS_HANDLER_CONFIG",
+			},
+			checkJSON:    true,
+			expectedKeys: []string{"upload_artifact"},
+		},
 		{
 			name: "update_release config",
 			safeOutputs: &SafeOutputsConfig{