Refactored `test-http-allow-req-after-204-res` file to use countdown
Refactored the test case test-http-allow-req-after-204-res
to use countdown, as per issue #17169 (closed)
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
commit message follows commit guidelines
Affected core subsystem(s)
test