[Misc] Provide a DeepSeek ReasoningParser with thinking enabled by default#33221

DarkLight1337 merged 4 commits intovllm-project:mainvllm-project/vllm:mainfrom

chaunceyjiang:DeepSeekV3ReasoningWithThinkingParserchaunceyjiang/vllm:DeepSeekV3ReasoningWithThinkingParserCopy head branch name to clipboard