databases/redis6: Update to 6.0.17

Add PORTSCOUT to limit the range to 6.0.x.

ChangeLog: https://github.com/redis/redis/releases/tag/6.0.17
MFH: 2023Q1
Security: 5fa68bd9-95d9-11ed-811a-080027f5fec9
(cherry picked from commit 5086acf51416d996d18326daa129fcd50046efb1)