Reduce Redis key size

[ChrisBr]

Reduce Redis key size by ~40% to reduce interzone network traffic.

irb(main):001> "build:unit:019aef0e-c010-433e-b706-c658d3c16372:running".bytesize
=> 55
irb(main):002> "b:1234567:r".bytesize
=> 11

> ls -lah ci-queue.log ci-queue-transformed.log
-rw-r--r--@ 1 cbruckmayer  staff   399K  5 Dec 19:11 ci-queue-transformed.log
-rw-r--r--@ 1 cbruckmayer  staff   656K  5 Dec 15:41 ci-queue.log