fix: do not mutate Tool schemas (and handle empty tools) in OpenAIResponsesChatGenerator#12067

sjrl merged 3 commits into

deepset-ai:maindeepset-ai/haystack:mainfrom

TimurRakhmatullin86:fix/openai-responses-tool-handlingTimurRakhmatullin86/haystack:fix/openai-responses-tool-handlingCopy head branch name to clipboard