component/proftpd: version ↑ 1.3.6b

1.3.6a had a fix for building mod_sftp using OpenSSL 1.1.x, so we can
use default openssl again.
This should fix problems with proftpd-mod_auth_web that was linked
against curl which already used openssl 1.1
6 jobs for fix/missing-rpaths in 0 seconds
Status Job ID Name Coverage
  External
canceled SlapOS.SoftwareReleases.IntegrationTest-Jerome-WIP

01:48:47

canceled SlapOS.SoftwareReleases.IntegrationTest-Jerome-WIP

00:45:25

failed SlapOS.SoftwareReleases.IntegrationTest-Jerome-WIP

04:15:03

failed SlapOS.SoftwareReleases.IntegrationTest-Jerome-WIP

04:35:51

canceled SlapOS.SoftwareReleases.IntegrationTest-Jerome-WIP

03:23:10

failed SlapOS.SoftwareReleases.IntegrationTest-Jerome-WIP

08:37:14