Switch Hookshot from queue.xxx to cache.redisUri

Related to:

- https://github.com/matrix-org/matrix-hookshot/pull/902
- https://github.com/matrix-org/matrix-hookshot/releases/tag/5.3.0
- https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3281

roles/custom/matrix-bridge-hookshot/defaults/main.yml

@@ -40,15 +40,17 @@ matrix_hookshot_appservice_port: 9993
 matrix_hookshot_appservice_hostname: "{{ matrix_hookshot_public_hostname }}"
 matrix_hookshot_appservice_endpoint: "{{ matrix_hookshot_public_endpoint }}/_matrix/app"
 
-# The variables below control the queue parameters and may optionally be pointed to a Redis instance.
-# These are required when experimental encryption is enabled (`matrix_hookshot_experimental_encryption_enabled`).
-matrix_hookshot_queue_host: ''
-matrix_hookshot_queue_port: 6739
+# The variables below control the Redis cache parameters.
+# Using caching is required when experimental encryption is enabled (`matrix_hookshot_experimental_encryption_enabled`)
+# but may also speed up Hookshot startup, etc.
+matrix_hookshot_cache_redis_host: ''
+matrix_hookshot_cache_redis_port: 6739
+matrix_hookshot_cache_redisUri: "{{ ('redis://' + matrix_hookshot_cache_redis_host + ':' + matrix_hookshot_cache_redis_port) if matrix_hookshot_cache_redis_host else '' }}"
 
 # Controls whether the experimental end-to-bridge encryption support is enabled.
 # This requires that:
 # - support to also be enabled in the homeserver, see the documentation of Hookshot.
-# - Hookshot to be pointed at a Redis instance via the `matrix_hookshot_queue_*` variables.
+# - Hookshot to be pointed at a Redis instance via the `matrix_hookshot_cache_redis*` variables.
 matrix_hookshot_experimental_encryption_enabled: false
 
 # Controls whether metrics are enabled in the bridge configuration.