Patch release v5.12.1

Patch release v5.12.1 Updated the lower bound for PEFT and a fix for auto tokenizer to properly resolve the mistral tokenizer (when mistral-common is installed). This is similar to v.5.10.3 minus the fixes that were already included in the main release - vLLM will first target 5.10.3 🤗 Fix peft lower bound #46605 by @hmellor ( #46605 ) mistral common backend fix #46667 by @itazap ( #46667 ) Full Changelog : v5.12.0...v5.12.1