[GITEA] Simplify cron list test (squash)

- As per
https://codeberg.org/forgejo/forgejo/pulls/1352#issuecomment-1076074
- Only test if the returned stuff is correct, not necessarily accurate.

(cherry picked from commit 55bcaf60ec)
(cherry picked from commit 4f03e48106)
(cherry picked from commit f35c31b9be)
(cherry picked from commit d08f486da2)
(cherry picked from commit 5d035c01c5)
(cherry picked from commit e2d76957e5)

tests/integration/api_admin_test.go

@@ -298,11 +298,12 @@ func TestAPICron(t *testing.T) {
 		req := NewRequest(t, "GET", urlStr)
 		resp := MakeRequest(t, req, http.StatusOK)
 
-		assert.Equal(t, "27", resp.Header().Get("X-Total-Count"))
+		assert.NotEmpty(t, resp.Header().Get("X-Total-Count"))
 
 		var crons []api.Cron
 		DecodeJSON(t, resp, &crons)
-		assert.Len(t, crons, 27)
+
+		assert.NotEmpty(t, crons)
 	})
 
 	t.Run("Execute", func(t *testing.T) {