databases/redistimeseries: New port

RedisTimeSeries is a Redis module that adds native time-series data
structures. It supports high-volume ingestion, retention policies,
downsampling, aggregation, and querying series by labels.

This standalone module release requires Redis 7.4 or newer.

WWW: https://github.com/RedisTimeSeries/RedisTimeSeries

PR: 297163
Tested by: bofh
Event: Berlin Hackathon 202609