Support upload outputs and use needs context (#133)

See [Example usage of the needs context](https://docs.github.com/en/actions/learn-github-actions/contexts#example-usage-of-the-needs-context).

Related to:
- [actions-proto-def #5](https://gitea.com/gitea/actions-proto-def/pulls/5)
- [gitea #24230](https://github.com/go-gitea/gitea/pull/24230)

Reviewed-on: https://gitea.com/gitea/act_runner/pulls/133
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Reviewed-by: Zettat123 <zettat123@noreply.gitea.io>
Co-authored-by: Jason Song <i@wolfogre.com>
Co-committed-by: Jason Song <i@wolfogre.com>

internal/app/run/workflow_test.go

@@ -0,0 +1,74 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package run
+
+import (
+	"testing"
+
+	runnerv1 "code.gitea.io/actions-proto-go/runner/v1"
+	"github.com/nektos/act/pkg/model"
+	"github.com/stretchr/testify/require"
+	"gotest.tools/v3/assert"
+)
+
+func Test_generateWorkflow(t *testing.T) {
+	type args struct {
+		task *runnerv1.Task
+	}
+	tests := []struct {
+		name    string
+		args    args
+		assert  func(t *testing.T, wf *model.Workflow)
+		want1   string
+		wantErr bool
+	}{
+		{
+			name: "has needs",
+			args: args{
+				task: &runnerv1.Task{
+					WorkflowPayload: []byte(`
+name: Build and deploy
+on: push
+
+jobs:
+  job9:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - run: ./deploy --build ${{ needs.job1.outputs.output1 }}
+      - run: ./deploy --build ${{ needs.job2.outputs.output2 }}
+`),
+					Needs: map[string]*runnerv1.TaskNeed{
+						"job1": {
+							Outputs: map[string]string{
+								"output1": "output1 value",
+							},
+							Result: runnerv1.Result_RESULT_SUCCESS,
+						},
+						"job2": {
+							Outputs: map[string]string{
+								"output2": "output2 value",
+							},
+							Result: runnerv1.Result_RESULT_SUCCESS,
+						},
+					},
+				},
+			},
+			assert: func(t *testing.T, wf *model.Workflow) {
+				assert.DeepEqual(t, wf.GetJob("job9").Needs(), []string{"job1", "job2"})
+			},
+			want1:   "job9",
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, got1, err := generateWorkflow(tt.args.task)
+			require.NoError(t, err)
+			tt.assert(t, got)
+			assert.Equal(t, got1, tt.want1)
+		})
+	}
+}