feat: support GITHUB_REF_NAME & GITHUB_REF_TYPE (#1142)

* feat: support `_REF_NAME` & `_REF_TYPE`

* chore: fix `step_test::TestSetupEnv`

* fix: logic & test

* test: delete `GITHUB_REF_NAME`, `GITHUB_REF_TYPE`

pkg/model/github_context.go

@@ -18,6 +18,8 @@ type GithubContext struct {
 	EventName        string                 `json:"event_name"`
 	Sha              string                 `json:"sha"`
 	Ref              string                 `json:"ref"`
+	RefName          string                 `json:"ref_name"`
+	RefType          string                 `json:"ref_type"`
 	HeadRef          string                 `json:"head_ref"`
 	BaseRef          string                 `json:"base_ref"`
 	Token            string                 `json:"token"`