ICU-14484: redis connect helper (#6001)

* add redis connect support
* Setup redis in docker for e2e testing
* Update docs and changelog
* Commenting out e2e tests for now, will revisit in a separate task

enos/modules/test_e2e_docker/test.sh

@@ -41,6 +41,8 @@ install_cassandra() {
 # Install Cassandra
 install_cassandra
 
+# Install Redis
+apt install redis-server -y
 
 # Create a GPG key
 export KEY_PW=boundary