Fix: App used old threading interface.

4 jobs from master in 4 minutes 48 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #3320
build_cmake

00:45

 
  Test
passed #3321
run_tests

00:52

 
  Sanitizer
passed #3323
run_address_sanitizer

01:56

passed #3322
run_thread_sanitizer

01:14