release: Volunteering for 2.18 release. (#7046)
release: Volunteering for 2.18 release. (#7046)

:wave: 

I am happy to do next release. This is because we spent a lot time recent weeks in query optimizations on Prometheus, Thanos, and Cortex, so 2.18 release might have significant changes like:

* Chunk Iterators finally :heart: 
* @pstibrany and @pracucci major optimizations to postings
* Potentially https://github.com/prometheus/prometheus/issues/6878 with @mkabischev help. 

I know I was a release Shephard just in December, but given that I have full context for those I feel like I can help in releasing 2.18 a lot.
prometheus/prometheus,keegancsmith/prometheus,Gouthamve/prometheus,prometheus/prometheus,GoogleCloudPlatform/prometheus,keegancsmith/prometheus,GoogleCloudPlatform/prometheus,alileza/prometheus,prometheus/prometheus,kangwoo/prometheus,kangwoo/prometheus,GoogleCloudPlatform/prometheus,kangwoo/prometheus,Gouthamve/prometheus,Gouthamve/prometheus,alileza/prometheus,prometheus/prometheus,alileza/prometheus,GoogleCloudPlatform/prometheus,alileza/prometheus,Gouthamve/prometheus,keegancsmith/prometheus,GoogleCloudPlatform/prometheus,alileza/prometheus,keegancsmith/prometheus,kangwoo/prometheus,keegancsmith/prometheus,prometheus/prometheus