Add an optional Redis component to the Higress helm package and all-in-one image.

[johnlanni]

Why do you need it?

There are more and more plugins starting to depend on Redis. To facilitate users in verifying the functionality, an optional Redis component can be added.

In the Helm package, the Redis component should be optional, controlled by a global parameter that determines whether it is installed.

In the all-in-one image, redis can be included by default.And in the distributed mcpbridge, the corresponding Redis service source configuration is included by default.

all-in-one image Dockerfile:

https://github.com/higress-group/higress-standalone/blob/main/all-in-one/Dockerfile