Expose SetJob to make EraseNeeds work (#35)

Related to #33

Reviewed-on: https://gitea.com/gitea/act/pulls/35
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>

act/jobparser/testdata_test.go

@@ -0,0 +1,18 @@
+package jobparser
+
+import (
+	"embed"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+//go:embed testdata
+var testdata embed.FS
+
+func ReadTestdata(t *testing.T, name string) []byte {
+	content, err := testdata.ReadFile(filepath.Join("testdata", name))
+	require.NoError(t, err)
+	return content
+}