Add unpickle_megolm_outbound fuzzer. Enable C harness support.

2 jobs for dkasak/unpickle_megolm_outbound in 2 minutes and 10 seconds (queued for 2 seconds)
Child pipeline (parent)
Status Name Job ID Coverage
  Build
passed build:js #23477

00:01:12

 
  Test
passed test:js #23480

00:00:58