test_runner: use v8.serialize instead of TAP
Refs: https://github.com/nodejs/node/issues/47663#issuecomment-1518677131 Fixes: https://github.com/nodejs/node/issues/44656 Fixes: https://github.com/nodejs/node/issues/47955 Fixes: https://github.com/nodejs/node/issues/47481
not sure if this change is something we desire to document.