Connection Pool for Redis #294

Job	Run time
ubuntu-20.04 - 3	1s
ubuntu-20.04 - 2.7	1s
ubuntu-20.04 - 3.2	1s
macos-latest - 2.7	26s
macos-latest - 3	8s
macos-latest - 3.2	8s
ubuntu-22.04 - 3.2	13s
ubuntu-20.04 - 3.1	22h 14m 57s
ubuntu-20.04 - truffleruby-head	1s
ubuntu-22.04 - 3	6s
ubuntu-22.04 - 3.1	13s
macos-latest - 3.1	11s
macos-latest - truffleruby-head	19s
CI Status (matrix)	3s
	22h 16m 48s

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