Feat: Redis support for keyshare server and myirmaserver (with failover support) #622

Job	Run time
build (linux, amd64)	49s
lint	1m 37s
build (linux, 386)	51s
docker-build	1m 10s
test	8m 3s
build (linux, arm)	59s
build (linux, arm64)	1m 2s
build (darwin, amd64)	1m 8s
build (darwin, arm64)	1m 1s
build (windows, amd64)	1m 3s
build (windows, 386)	50s
build (windows, arm)	53s
build (windows, arm64)	51s
analyze	2m 34s
integration-test-clientside (v0.13.2)	2m 54s
integration-test-serverside (f0023141ec429d912e329665f937d05b178a3fee)	3m 17s
	29m 2s

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