chore: add testdata privatekey corresponding to kss public key of test scheme

3 jobs for master in 4 minutes and 59 seconds (queued for 14 seconds)
Status Job ID Name Coverage
  Test
passed #85665
unit_tests

00:01:35

failed #85663
unit_tests

00:01:21

 
  Build
passed #85664
binaries

00:03:24