Upgrade from Kong 3.8.0 to 3.9.0 rate-limiting plugin depreciation warning

[ego93]

Is there an existing issue for this?

• I have searched the existing issues

Kong version ($ kong version)

3.9.0

Current Behavior

When I upgraded from Kong 3.8.0 to 3.9.0 I got millions of log warning messages about the rate-limiting plugin having deprecated config.redis*

Example: 1407#0: *50235 [kong] init.lua:904 rate-limiting: config.redis_ssl is deprecated

Expected Behavior

When I upgrade I expect config that has moved location to be auto-updated

Steps To Reproduce

1. Kubernetes 1.31.x
2. Running Kong 3.8.0 in DB-less mode deployed with Helm using chart version 2.46.0
3. Have an ingress using rate-limiting plugin on the route
4. Upgrade chart to 2.48.0 making sure image is 3.9.0
5. See warning

Anything else?

Kong is in DB-Less mode
Warning comes from kong_admin service
The plugins and ingress routes are deploy in additional helm charts in different namespaces to kong