test: speed up parallel/test-tls-session-cache
This test had some unnecessary timeouts that made it run for a much longer time than necessary (about 9 s rather than 0.2 s).
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/tls