[9.4] Fix observability_ai_assistant_tool_call EBT error when connector is an inference endpoint (#263334)#264292

kibanamachine merged 2 commits intoelastic:9.4elastic/kibana:9.4from

kibanamachine:backport/9.4/pr-263334kibanamachine/kibana:backport/9.4/pr-263334Copy head branch name to clipboard