fix(aigateway): rename agents to prompts
What does this merge request do and why?
Agents were removed to prompts: gitlab-org/modelops/applied-ml/code-suggestions/ai-assist!1132 (comment 2035938614)
Agents were removed to prompts: gitlab-org/modelops/applied-ml/code-suggestions/ai-assist!1132 (comment 2035938614)