feat: Add new provider images for RhoAI configuration (#565)

Author: dmaniloff

config/overlays/rhoai/params.env

@@ -13,4 +13,6 @@ lmes-allow-online=false
 lmes-allow-code-execution=false
 guardrails-orchestrator-image=quay.io/trustyai/ta-guardrails-orchestrator:latest
 guardrails-built-in-detector-image=quay.io/trustyai/guardrails-detector-built-in:latest
-guardrails-sidecar-gateway-image=quay.io/trustyai/guardrails-sidecar-gateway:latest
+guardrails-sidecar-gateway-image=quay.io/trustyai/guardrails-sidecar-gateway:latest
+ragas-provider-image=quay.io/trustyai/llama-stack-provider-ragas:latest
+garak-provider-image=quay.io/trustyai/llama-stack-provider-trustyai-garak:latest