[bug] Tool calls get ignored when Agent uses talk_to_user tool in swarms

[dhilloulinoracle]

Currently, the LLM is not executing tools that are present in a parallel tool calling turn along with a talk_to_user call. We should do the opposite, rather drop the talk_to_user call to force the LLM running all the tool calls before returning to the user

[dhilloulinoracle]

being addressed in #95

[dhilloulinoracle]

backport already merged with #96