MT#7531 Add ERROR label for failed TAP cases

(cherry picked from commit 9518075d296d727c6ea834d4413671f2f9d584d9)
MT#7535 add invite_no_refer test.

The config allow_no_refer_method is no by default.

(cherry picked from commit ea2291fa418800f628289bc9d273a4f625ed4ff9)